Home / 7,311.40-10,967.10-2,116.60

Finding the Fourth Proportional to 7,311.40, 10,967.10 and 2,116.60

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Solution

The fourth proportional to 7,311.40, 10,967.10 and 2,116.60 is: 3,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.40 : 10,967.10 = 2,116.60 : x
  2. Step 2: Convert to fraction form
    7,311.40/10,967.10 = 2,116.60/x
  3. Step 3: Cross multiply
    7,311.40x = 10,967.10 × 2,116.60
  4. Step 4: Simplify right side
    7,311.40x = 23,212,963.86
  5. Step 5: Solve for x
    x = 23,212,963.86/7,311.40
  6. Step 6: Final answer
    x = 3,174.90

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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.