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Finding the Fourth Proportional to 7,178.80, 10,757.23 and 3,016.53

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Solution

The fourth proportional to 7,178.80, 10,757.23 and 3,016.53 is: 4,520.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.80 : 10,757.23 = 3,016.53 : x
  2. Step 2: Convert to fraction form
    7,178.80/10,757.23 = 3,016.53/x
  3. Step 3: Cross multiply
    7,178.80x = 10,757.23 × 3,016.53
  4. Step 4: Simplify right side
    7,178.80x = 32,449,499.47
  5. Step 5: Solve for x
    x = 32,449,499.47/7,178.80
  6. Step 6: Final answer
    x = 4,520.19

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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.