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Finding the Fourth Proportional to 3,751.61, 5,620.10 and 2,449.13

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Solution

The fourth proportional to 3,751.61, 5,620.10 and 2,449.13 is: 3,668.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.61 : 5,620.10 = 2,449.13 : x
  2. Step 2: Convert to fraction form
    3,751.61/5,620.10 = 2,449.13/x
  3. Step 3: Cross multiply
    3,751.61x = 5,620.10 × 2,449.13
  4. Step 4: Simplify right side
    3,751.61x = 13,764,315.17
  5. Step 5: Solve for x
    x = 13,764,315.17/3,751.61
  6. Step 6: Final answer
    x = 3,668.91

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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.