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Finding the Fourth Proportional to 7,158.80, 10,736.13 and 2,478.62

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Solution

The fourth proportional to 7,158.80, 10,736.13 and 2,478.62 is: 3,717.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,158.80 : 10,736.13 = 2,478.62 : x
  2. Step 2: Convert to fraction form
    7,158.80/10,736.13 = 2,478.62/x
  3. Step 3: Cross multiply
    7,158.80x = 10,736.13 × 2,478.62
  4. Step 4: Simplify right side
    7,158.80x = 26,610,822.68
  5. Step 5: Solve for x
    x = 26,610,822.68/7,158.80
  6. Step 6: Final answer
    x = 3,717.22

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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.