Home / 4,122.10-5,691.12-2,708.29

Finding the Fourth Proportional to 4,122.10, 5,691.12 and 2,708.29

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Solution

The fourth proportional to 4,122.10, 5,691.12 and 2,708.29 is: 3,739.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.10 : 5,691.12 = 2,708.29 : x
  2. Step 2: Convert to fraction form
    4,122.10/5,691.12 = 2,708.29/x
  3. Step 3: Cross multiply
    4,122.10x = 5,691.12 × 2,708.29
  4. Step 4: Simplify right side
    4,122.10x = 15,413,203.38
  5. Step 5: Solve for x
    x = 15,413,203.38/4,122.10
  6. Step 6: Final answer
    x = 3,739.16

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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.