Home / 7,152.92-9,872.18-4,170.50

Finding the Fourth Proportional to 7,152.92, 9,872.18 and 4,170.50

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Solution

The fourth proportional to 7,152.92, 9,872.18 and 4,170.50 is: 5,755.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.92 : 9,872.18 = 4,170.50 : x
  2. Step 2: Convert to fraction form
    7,152.92/9,872.18 = 4,170.50/x
  3. Step 3: Cross multiply
    7,152.92x = 9,872.18 × 4,170.50
  4. Step 4: Simplify right side
    7,152.92x = 41,171,856.48
  5. Step 5: Solve for x
    x = 41,171,856.48/7,152.92
  6. Step 6: Final answer
    x = 5,755.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.