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Finding the Fourth Proportional to 2,562.80, 3,844.20 and 2,101.10

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Solution

The fourth proportional to 2,562.80, 3,844.20 and 2,101.10 is: 3,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,562.80 : 3,844.20 = 2,101.10 : x
  2. Step 2: Convert to fraction form
    2,562.80/3,844.20 = 2,101.10/x
  3. Step 3: Cross multiply
    2,562.80x = 3,844.20 × 2,101.10
  4. Step 4: Simplify right side
    2,562.80x = 8,077,048.62
  5. Step 5: Solve for x
    x = 8,077,048.62/2,562.80
  6. Step 6: Final answer
    x = 3,151.65

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Similar ratio
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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.