Home / 3,390.68-5,088.63-1,517.15

Finding the Fourth Proportional to 3,390.68, 5,088.63 and 1,517.15

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Solution

The fourth proportional to 3,390.68, 5,088.63 and 1,517.15 is: 2,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.68 : 5,088.63 = 1,517.15 : x
  2. Step 2: Convert to fraction form
    3,390.68/5,088.63 = 1,517.15/x
  3. Step 3: Cross multiply
    3,390.68x = 5,088.63 × 1,517.15
  4. Step 4: Simplify right side
    3,390.68x = 7,720,234.09
  5. Step 5: Solve for x
    x = 7,720,234.09/3,390.68
  6. Step 6: Final answer
    x = 2,276.90

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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.