Home / 3,726.52-5,590.38-1,128.85

Finding the Fourth Proportional to 3,726.52, 5,590.38 and 1,128.85

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Solution

The fourth proportional to 3,726.52, 5,590.38 and 1,128.85 is: 1,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.52 : 5,590.38 = 1,128.85 : x
  2. Step 2: Convert to fraction form
    3,726.52/5,590.38 = 1,128.85/x
  3. Step 3: Cross multiply
    3,726.52x = 5,590.38 × 1,128.85
  4. Step 4: Simplify right side
    3,726.52x = 6,310,700.46
  5. Step 5: Solve for x
    x = 6,310,700.46/3,726.52
  6. Step 6: Final answer
    x = 1,693.46

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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.