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Finding the Fourth Proportional to 2,626.98, 3,941.04 and 1,311.48

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Solution

The fourth proportional to 2,626.98, 3,941.04 and 1,311.48 is: 1,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.98 : 3,941.04 = 1,311.48 : x
  2. Step 2: Convert to fraction form
    2,626.98/3,941.04 = 1,311.48/x
  3. Step 3: Cross multiply
    2,626.98x = 3,941.04 × 1,311.48
  4. Step 4: Simplify right side
    2,626.98x = 5,168,595.14
  5. Step 5: Solve for x
    x = 5,168,595.14/2,626.98
  6. Step 6: Final answer
    x = 1,967.50

Related Problems

Find fourth proportional to 1,313.49, 1,970.52 and 655.74
Half scale
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Double scale
Find fourth proportional to 2,627.98, 3,942.54 and 1,312.48
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.