Home / 2,723.24-4,084.88-991.87

Finding the Fourth Proportional to 2,723.24, 4,084.88 and 991.87

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Solution

The fourth proportional to 2,723.24, 4,084.88 and 991.87 is: 1,487.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.24 : 4,084.88 = 991.87 : x
  2. Step 2: Convert to fraction form
    2,723.24/4,084.88 = 991.87/x
  3. Step 3: Cross multiply
    2,723.24x = 4,084.88 × 991.87
  4. Step 4: Simplify right side
    2,723.24x = 4,051,654.75
  5. Step 5: Solve for x
    x = 4,051,654.75/2,723.24
  6. Step 6: Final answer
    x = 1,487.81

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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.