Home / 1,132.61-1,564.05-1,071.24

Finding the Fourth Proportional to 1,132.61, 1,564.05 and 1,071.24

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Solution

The fourth proportional to 1,132.61, 1,564.05 and 1,071.24 is: 1,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132.61 : 1,564.05 = 1,071.24 : x
  2. Step 2: Convert to fraction form
    1,132.61/1,564.05 = 1,071.24/x
  3. Step 3: Cross multiply
    1,132.61x = 1,564.05 × 1,071.24
  4. Step 4: Simplify right side
    1,132.61x = 1,675,472.92
  5. Step 5: Solve for x
    x = 1,675,472.92/1,132.61
  6. Step 6: Final answer
    x = 1,479.31

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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.