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Finding the Fourth Proportional to 7,249.98, 10,876.90 and 2,319.72

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Solution

The fourth proportional to 7,249.98, 10,876.90 and 2,319.72 is: 3,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.98 : 10,876.90 = 2,319.72 : x
  2. Step 2: Convert to fraction form
    7,249.98/10,876.90 = 2,319.72/x
  3. Step 3: Cross multiply
    7,249.98x = 10,876.90 × 2,319.72
  4. Step 4: Simplify right side
    7,249.98x = 25,231,362.47
  5. Step 5: Solve for x
    x = 25,231,362.47/7,249.98
  6. Step 6: Final answer
    x = 3,480.20

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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.