Home / 2,118.76-2,923.70-1,234.44

Finding the Fourth Proportional to 2,118.76, 2,923.70 and 1,234.44

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Solution

The fourth proportional to 2,118.76, 2,923.70 and 1,234.44 is: 1,703.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.76 : 2,923.70 = 1,234.44 : x
  2. Step 2: Convert to fraction form
    2,118.76/2,923.70 = 1,234.44/x
  3. Step 3: Cross multiply
    2,118.76x = 2,923.70 × 1,234.44
  4. Step 4: Simplify right side
    2,118.76x = 3,609,132.23
  5. Step 5: Solve for x
    x = 3,609,132.23/2,118.76
  6. Step 6: Final answer
    x = 1,703.42

Related Problems

Find fourth proportional to 1,059.38, 1,461.85 and 617.22
Half scale
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Double scale
Find fourth proportional to 2,119.76, 2,925.08 and 1,235.44
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.