Home / 3,726.41-5,139.45-3,612.20

Finding the Fourth Proportional to 3,726.41, 5,139.45 and 3,612.20

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Solution

The fourth proportional to 3,726.41, 5,139.45 and 3,612.20 is: 4,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.41 : 5,139.45 = 3,612.20 : x
  2. Step 2: Convert to fraction form
    3,726.41/5,139.45 = 3,612.20/x
  3. Step 3: Cross multiply
    3,726.41x = 5,139.45 × 3,612.20
  4. Step 4: Simplify right side
    3,726.41x = 18,564,695.59
  5. Step 5: Solve for x
    x = 18,564,695.59/3,726.41
  6. Step 6: Final answer
    x = 4,981.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.