Home / 1,126.16-1,689.20-1,058.52

Finding the Fourth Proportional to 1,126.16, 1,689.20 and 1,058.52

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Solution

The fourth proportional to 1,126.16, 1,689.20 and 1,058.52 is: 1,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.16 : 1,689.20 = 1,058.52 : x
  2. Step 2: Convert to fraction form
    1,126.16/1,689.20 = 1,058.52/x
  3. Step 3: Cross multiply
    1,126.16x = 1,689.20 × 1,058.52
  4. Step 4: Simplify right side
    1,126.16x = 1,788,046.69
  5. Step 5: Solve for x
    x = 1,788,046.69/1,126.16
  6. Step 6: Final answer
    x = 1,587.74

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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.