Home / 4,016.70-5,542.10-3,139.20

Finding the Fourth Proportional to 4,016.70, 5,542.10 and 3,139.20

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Solution

The fourth proportional to 4,016.70, 5,542.10 and 3,139.20 is: 4,331.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,016.70 : 5,542.10 = 3,139.20 : x
  2. Step 2: Convert to fraction form
    4,016.70/5,542.10 = 3,139.20/x
  3. Step 3: Cross multiply
    4,016.70x = 5,542.10 × 3,139.20
  4. Step 4: Simplify right side
    4,016.70x = 17,397,760.32
  5. Step 5: Solve for x
    x = 17,397,760.32/4,016.70
  6. Step 6: Final answer
    x = 4,331.36

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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.