Home / 3,721.30-5,581.95-3,105.70

Finding the Fourth Proportional to 3,721.30, 5,581.95 and 3,105.70

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Solution

The fourth proportional to 3,721.30, 5,581.95 and 3,105.70 is: 4,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.30 : 5,581.95 = 3,105.70 : x
  2. Step 2: Convert to fraction form
    3,721.30/5,581.95 = 3,105.70/x
  3. Step 3: Cross multiply
    3,721.30x = 5,581.95 × 3,105.70
  4. Step 4: Simplify right side
    3,721.30x = 17,335,862.12
  5. Step 5: Solve for x
    x = 17,335,862.12/3,721.30
  6. Step 6: Final answer
    x = 4,658.55

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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.