Home / 4,474.28-6,710.78-1,187.66

Finding the Fourth Proportional to 4,474.28, 6,710.78 and 1,187.66

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Solution

The fourth proportional to 4,474.28, 6,710.78 and 1,187.66 is: 1,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,474.28 : 6,710.78 = 1,187.66 : x
  2. Step 2: Convert to fraction form
    4,474.28/6,710.78 = 1,187.66/x
  3. Step 3: Cross multiply
    4,474.28x = 6,710.78 × 1,187.66
  4. Step 4: Simplify right side
    4,474.28x = 7,970,124.97
  5. Step 5: Solve for x
    x = 7,970,124.97/4,474.28
  6. Step 6: Final answer
    x = 1,781.32

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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.