Home / 7,152.92-9,872.22-4,170.50

Finding the Fourth Proportional to 7,152.92, 9,872.22 and 4,170.50

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Solution

The fourth proportional to 7,152.92, 9,872.22 and 4,170.50 is: 5,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.92 : 9,872.22 = 4,170.50 : x
  2. Step 2: Convert to fraction form
    7,152.92/9,872.22 = 4,170.50/x
  3. Step 3: Cross multiply
    7,152.92x = 9,872.22 × 4,170.50
  4. Step 4: Simplify right side
    7,152.92x = 41,172,044.15
  5. Step 5: Solve for x
    x = 41,172,044.15/7,152.92
  6. Step 6: Final answer
    x = 5,755.98

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1.5x scale

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.