Home / 5,412.76-8,119.45-1,517.47

Finding the Fourth Proportional to 5,412.76, 8,119.45 and 1,517.47

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Solution

The fourth proportional to 5,412.76, 8,119.45 and 1,517.47 is: 2,276.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.76 : 8,119.45 = 1,517.47 : x
  2. Step 2: Convert to fraction form
    5,412.76/8,119.45 = 1,517.47/x
  3. Step 3: Cross multiply
    5,412.76x = 8,119.45 × 1,517.47
  4. Step 4: Simplify right side
    5,412.76x = 12,321,021.79
  5. Step 5: Solve for x
    x = 12,321,021.79/5,412.76
  6. Step 6: Final answer
    x = 2,276.29

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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.