Home / 6,617.65-9,132.68-3,633.78

Finding the Fourth Proportional to 6,617.65, 9,132.68 and 3,633.78

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Solution

The fourth proportional to 6,617.65, 9,132.68 and 3,633.78 is: 5,014.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.65 : 9,132.68 = 3,633.78 : x
  2. Step 2: Convert to fraction form
    6,617.65/9,132.68 = 3,633.78/x
  3. Step 3: Cross multiply
    6,617.65x = 9,132.68 × 3,633.78
  4. Step 4: Simplify right side
    6,617.65x = 33,186,149.93
  5. Step 5: Solve for x
    x = 33,186,149.93/6,617.65
  6. Step 6: Final answer
    x = 5,014.79

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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.