Home / 6,629.72-9,149.04-3,977.12

Finding the Fourth Proportional to 6,629.72, 9,149.04 and 3,977.12

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Solution

The fourth proportional to 6,629.72, 9,149.04 and 3,977.12 is: 5,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.72 : 9,149.04 = 3,977.12 : x
  2. Step 2: Convert to fraction form
    6,629.72/9,149.04 = 3,977.12/x
  3. Step 3: Cross multiply
    6,629.72x = 9,149.04 × 3,977.12
  4. Step 4: Simplify right side
    6,629.72x = 36,386,829.96
  5. Step 5: Solve for x
    x = 36,386,829.96/6,629.72
  6. Step 6: Final answer
    x = 5,488.44

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.