Home / 3,818.11-5,753.18-3,139.97

Finding the Fourth Proportional to 3,818.11, 5,753.18 and 3,139.97

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Solution

The fourth proportional to 3,818.11, 5,753.18 and 3,139.97 is: 4,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.11 : 5,753.18 = 3,139.97 : x
  2. Step 2: Convert to fraction form
    3,818.11/5,753.18 = 3,139.97/x
  3. Step 3: Cross multiply
    3,818.11x = 5,753.18 × 3,139.97
  4. Step 4: Simplify right side
    3,818.11x = 18,064,796.90
  5. Step 5: Solve for x
    x = 18,064,796.90/3,818.11
  6. Step 6: Final answer
    x = 4,731.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.