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Finding the Fourth Proportional to 2,841.56, 4,253.12 and 2,447.90

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Solution

The fourth proportional to 2,841.56, 4,253.12 and 2,447.90 is: 3,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.56 : 4,253.12 = 2,447.90 : x
  2. Step 2: Convert to fraction form
    2,841.56/4,253.12 = 2,447.90/x
  3. Step 3: Cross multiply
    2,841.56x = 4,253.12 × 2,447.90
  4. Step 4: Simplify right side
    2,841.56x = 10,411,212.45
  5. Step 5: Solve for x
    x = 10,411,212.45/2,841.56
  6. Step 6: Final answer
    x = 3,663.91

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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.