Home / 3,726.20-5,590.11-1,129.34

Finding the Fourth Proportional to 3,726.20, 5,590.11 and 1,129.34

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Solution

The fourth proportional to 3,726.20, 5,590.11 and 1,129.34 is: 1,694.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.20 : 5,590.11 = 1,129.34 : x
  2. Step 2: Convert to fraction form
    3,726.20/5,590.11 = 1,129.34/x
  3. Step 3: Cross multiply
    3,726.20x = 5,590.11 × 1,129.34
  4. Step 4: Simplify right side
    3,726.20x = 6,313,153.04
  5. Step 5: Solve for x
    x = 6,313,153.04/3,726.20
  6. Step 6: Final answer
    x = 1,694.26

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1.5x scale

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.