Home / 1,177.28-1,626.24-1,066.88

Finding the Fourth Proportional to 1,177.28, 1,626.24 and 1,066.88

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Solution

The fourth proportional to 1,177.28, 1,626.24 and 1,066.88 is: 1,473.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.28 : 1,626.24 = 1,066.88 : x
  2. Step 2: Convert to fraction form
    1,177.28/1,626.24 = 1,066.88/x
  3. Step 3: Cross multiply
    1,177.28x = 1,626.24 × 1,066.88
  4. Step 4: Simplify right side
    1,177.28x = 1,735,002.93
  5. Step 5: Solve for x
    x = 1,735,002.93/1,177.28
  6. Step 6: Final answer
    x = 1,473.74

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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.