Home / 3,747.12-5,620.68-1,149.72

Finding the Fourth Proportional to 3,747.12, 5,620.68 and 1,149.72

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Solution

The fourth proportional to 3,747.12, 5,620.68 and 1,149.72 is: 1,724.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.12 : 5,620.68 = 1,149.72 : x
  2. Step 2: Convert to fraction form
    3,747.12/5,620.68 = 1,149.72/x
  3. Step 3: Cross multiply
    3,747.12x = 5,620.68 × 1,149.72
  4. Step 4: Simplify right side
    3,747.12x = 6,462,208.21
  5. Step 5: Solve for x
    x = 6,462,208.21/3,747.12
  6. Step 6: Final answer
    x = 1,724.58

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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.