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Finding the Fourth Proportional to 4,000.87, 6,000.28 and 2,751.21

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Solution

The fourth proportional to 4,000.87, 6,000.28 and 2,751.21 is: 4,126.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.87 : 6,000.28 = 2,751.21 : x
  2. Step 2: Convert to fraction form
    4,000.87/6,000.28 = 2,751.21/x
  3. Step 3: Cross multiply
    4,000.87x = 6,000.28 × 2,751.21
  4. Step 4: Simplify right side
    4,000.87x = 16,508,013.31
  5. Step 5: Solve for x
    x = 16,508,013.31/4,000.87
  6. Step 6: Final answer
    x = 4,126.10

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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.