Home / 5,717.46-7,887.78-3,727.32

Finding the Fourth Proportional to 5,717.46, 7,887.78 and 3,727.32

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Solution

The fourth proportional to 5,717.46, 7,887.78 and 3,727.32 is: 5,142.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.46 : 7,887.78 = 3,727.32 : x
  2. Step 2: Convert to fraction form
    5,717.46/7,887.78 = 3,727.32/x
  3. Step 3: Cross multiply
    5,717.46x = 7,887.78 × 3,727.32
  4. Step 4: Simplify right side
    5,717.46x = 29,400,280.15
  5. Step 5: Solve for x
    x = 29,400,280.15/5,717.46
  6. Step 6: Final answer
    x = 5,142.19

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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.