Home / 7,229.20-10,839.40-2,841.40

Finding the Fourth Proportional to 7,229.20, 10,839.40 and 2,841.40

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Solution

The fourth proportional to 7,229.20, 10,839.40 and 2,841.40 is: 4,260.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.20 : 10,839.40 = 2,841.40 : x
  2. Step 2: Convert to fraction form
    7,229.20/10,839.40 = 2,841.40/x
  3. Step 3: Cross multiply
    7,229.20x = 10,839.40 × 2,841.40
  4. Step 4: Simplify right side
    7,229.20x = 30,799,071.16
  5. Step 5: Solve for x
    x = 30,799,071.16/7,229.20
  6. Step 6: Final answer
    x = 4,260.37

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1.5x scale

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.