Home / 7,757.06-11,640.45-3,140.06

Finding the Fourth Proportional to 7,757.06, 11,640.45 and 3,140.06

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Solution

The fourth proportional to 7,757.06, 11,640.45 and 3,140.06 is: 4,712.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,757.06 : 11,640.45 = 3,140.06 : x
  2. Step 2: Convert to fraction form
    7,757.06/11,640.45 = 3,140.06/x
  3. Step 3: Cross multiply
    7,757.06x = 11,640.45 × 3,140.06
  4. Step 4: Simplify right side
    7,757.06x = 36,551,711.43
  5. Step 5: Solve for x
    x = 36,551,711.43/7,757.06
  6. Step 6: Final answer
    x = 4,712.06

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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.