Home / 1,177.16-1,766.42-437.29

Finding the Fourth Proportional to 1,177.16, 1,766.42 and 437.29

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Solution

The fourth proportional to 1,177.16, 1,766.42 and 437.29 is: 656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.16 : 1,766.42 = 437.29 : x
  2. Step 2: Convert to fraction form
    1,177.16/1,766.42 = 437.29/x
  3. Step 3: Cross multiply
    1,177.16x = 1,766.42 × 437.29
  4. Step 4: Simplify right side
    1,177.16x = 772,426.78
  5. Step 5: Solve for x
    x = 772,426.78/1,177.16
  6. Step 6: Final answer
    x = 656.18

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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.