Home / 7,382.88-11,074.32-3,487.68

Finding the Fourth Proportional to 7,382.88, 11,074.32 and 3,487.68

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Solution

The fourth proportional to 7,382.88, 11,074.32 and 3,487.68 is: 5,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,382.88 : 11,074.32 = 3,487.68 : x
  2. Step 2: Convert to fraction form
    7,382.88/11,074.32 = 3,487.68/x
  3. Step 3: Cross multiply
    7,382.88x = 11,074.32 × 3,487.68
  4. Step 4: Simplify right side
    7,382.88x = 38,623,684.38
  5. Step 5: Solve for x
    x = 38,623,684.38/7,382.88
  6. Step 6: Final answer
    x = 5,231.52

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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.