Home / 3,129.56-4,695.12-2,575.16

Finding the Fourth Proportional to 3,129.56, 4,695.12 and 2,575.16

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Solution

The fourth proportional to 3,129.56, 4,695.12 and 2,575.16 is: 3,863.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.56 : 4,695.12 = 2,575.16 : x
  2. Step 2: Convert to fraction form
    3,129.56/4,695.12 = 2,575.16/x
  3. Step 3: Cross multiply
    3,129.56x = 4,695.12 × 2,575.16
  4. Step 4: Simplify right side
    3,129.56x = 12,090,672.34
  5. Step 5: Solve for x
    x = 12,090,672.34/3,129.56
  6. Step 6: Final answer
    x = 3,863.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.