Home / 1,022.16-1,531.92-474.56

Finding the Fourth Proportional to 1,022.16, 1,531.92 and 474.56

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Solution

The fourth proportional to 1,022.16, 1,531.92 and 474.56 is: 711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.16 : 1,531.92 = 474.56 : x
  2. Step 2: Convert to fraction form
    1,022.16/1,531.92 = 474.56/x
  3. Step 3: Cross multiply
    1,022.16x = 1,531.92 × 474.56
  4. Step 4: Simplify right side
    1,022.16x = 726,987.96
  5. Step 5: Solve for x
    x = 726,987.96/1,022.16
  6. Step 6: Final answer
    x = 711.23

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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.