Home / 5,177.28-7,142.77-2,937.86

Finding the Fourth Proportional to 5,177.28, 7,142.77 and 2,937.86

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Solution

The fourth proportional to 5,177.28, 7,142.77 and 2,937.86 is: 4,053.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.28 : 7,142.77 = 2,937.86 : x
  2. Step 2: Convert to fraction form
    5,177.28/7,142.77 = 2,937.86/x
  3. Step 3: Cross multiply
    5,177.28x = 7,142.77 × 2,937.86
  4. Step 4: Simplify right side
    5,177.28x = 20,984,407.87
  5. Step 5: Solve for x
    x = 20,984,407.87/5,177.28
  6. Step 6: Final answer
    x = 4,053.17

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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.