Home / 3,517.14-5,260.20-3,129.90

Finding the Fourth Proportional to 3,517.14, 5,260.20 and 3,129.90

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Solution

The fourth proportional to 3,517.14, 5,260.20 and 3,129.90 is: 4,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.14 : 5,260.20 = 3,129.90 : x
  2. Step 2: Convert to fraction form
    3,517.14/5,260.20 = 3,129.90/x
  3. Step 3: Cross multiply
    3,517.14x = 5,260.20 × 3,129.90
  4. Step 4: Simplify right side
    3,517.14x = 16,463,899.98
  5. Step 5: Solve for x
    x = 16,463,899.98/3,517.14
  6. Step 6: Final answer
    x = 4,681.05

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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.