Home / 1,089.29-1,631.67-532.32

Finding the Fourth Proportional to 1,089.29, 1,631.67 and 532.32

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Solution

The fourth proportional to 1,089.29, 1,631.67 and 532.32 is: 797.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089.29 : 1,631.67 = 532.32 : x
  2. Step 2: Convert to fraction form
    1,089.29/1,631.67 = 532.32/x
  3. Step 3: Cross multiply
    1,089.29x = 1,631.67 × 532.32
  4. Step 4: Simplify right side
    1,089.29x = 868,562.81
  5. Step 5: Solve for x
    x = 868,562.81/1,089.29
  6. Step 6: Final answer
    x = 797.37

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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.