Home / 1,126.17-1,689.15-304.53

Finding the Fourth Proportional to 1,126.17, 1,689.15 and 304.53

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Solution

The fourth proportional to 1,126.17, 1,689.15 and 304.53 is: 456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.17 : 1,689.15 = 304.53 : x
  2. Step 2: Convert to fraction form
    1,126.17/1,689.15 = 304.53/x
  3. Step 3: Cross multiply
    1,126.17x = 1,689.15 × 304.53
  4. Step 4: Simplify right side
    1,126.17x = 514,396.85
  5. Step 5: Solve for x
    x = 514,396.85/1,126.17
  6. Step 6: Final answer
    x = 456.77

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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.