Home / 3,726.54-5,590.08-1,129.68

Finding the Fourth Proportional to 3,726.54, 5,590.08 and 1,129.68

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Solution

The fourth proportional to 3,726.54, 5,590.08 and 1,129.68 is: 1,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.54 : 5,590.08 = 1,129.68 : x
  2. Step 2: Convert to fraction form
    3,726.54/5,590.08 = 1,129.68/x
  3. Step 3: Cross multiply
    3,726.54x = 5,590.08 × 1,129.68
  4. Step 4: Simplify right side
    3,726.54x = 6,315,001.57
  5. Step 5: Solve for x
    x = 6,315,001.57/3,726.54
  6. Step 6: Final answer
    x = 1,694.60

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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.