Home / 3,721.41-5,139.18-3,371.49

Finding the Fourth Proportional to 3,721.41, 5,139.18 and 3,371.49

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Solution

The fourth proportional to 3,721.41, 5,139.18 and 3,371.49 is: 4,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.41 : 5,139.18 = 3,371.49 : x
  2. Step 2: Convert to fraction form
    3,721.41/5,139.18 = 3,371.49/x
  3. Step 3: Cross multiply
    3,721.41x = 5,139.18 × 3,371.49
  4. Step 4: Simplify right side
    3,721.41x = 17,326,693.98
  5. Step 5: Solve for x
    x = 17,326,693.98/3,721.41
  6. Step 6: Final answer
    x = 4,655.95

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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.