Home / 7,432.97-11,147.68-2,990.65

Finding the Fourth Proportional to 7,432.97, 11,147.68 and 2,990.65

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Solution

The fourth proportional to 7,432.97, 11,147.68 and 2,990.65 is: 4,485.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,432.97 : 11,147.68 = 2,990.65 : x
  2. Step 2: Convert to fraction form
    7,432.97/11,147.68 = 2,990.65/x
  3. Step 3: Cross multiply
    7,432.97x = 11,147.68 × 2,990.65
  4. Step 4: Simplify right side
    7,432.97x = 33,338,785.06
  5. Step 5: Solve for x
    x = 33,338,785.06/7,432.97
  6. Step 6: Final answer
    x = 4,485.26

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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.