Home / 7,540.56-11,316.02-3,385.20

Finding the Fourth Proportional to 7,540.56, 11,316.02 and 3,385.20

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Solution

The fourth proportional to 7,540.56, 11,316.02 and 3,385.20 is: 5,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.56 : 11,316.02 = 3,385.20 : x
  2. Step 2: Convert to fraction form
    7,540.56/11,316.02 = 3,385.20/x
  3. Step 3: Cross multiply
    7,540.56x = 11,316.02 × 3,385.20
  4. Step 4: Simplify right side
    7,540.56x = 38,306,990.90
  5. Step 5: Solve for x
    x = 38,306,990.90/7,540.56
  6. Step 6: Final answer
    x = 5,080.13

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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.