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Finding the Fourth Proportional to 3,700.68, 5,550.71 and 1,103.61

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Solution

The fourth proportional to 3,700.68, 5,550.71 and 1,103.61 is: 1,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,700.68 : 5,550.71 = 1,103.61 : x
  2. Step 2: Convert to fraction form
    3,700.68/5,550.71 = 1,103.61/x
  3. Step 3: Cross multiply
    3,700.68x = 5,550.71 × 1,103.61
  4. Step 4: Simplify right side
    3,700.68x = 6,125,819.06
  5. Step 5: Solve for x
    x = 6,125,819.06/3,700.68
  6. Step 6: Final answer
    x = 1,655.32

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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.