Home / 5,124.72-7,687.12-1,661.96

Finding the Fourth Proportional to 5,124.72, 7,687.12 and 1,661.96

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Solution

The fourth proportional to 5,124.72, 7,687.12 and 1,661.96 is: 2,492.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.72 : 7,687.12 = 1,661.96 : x
  2. Step 2: Convert to fraction form
    5,124.72/7,687.12 = 1,661.96/x
  3. Step 3: Cross multiply
    5,124.72x = 7,687.12 × 1,661.96
  4. Step 4: Simplify right side
    5,124.72x = 12,775,685.96
  5. Step 5: Solve for x
    x = 12,775,685.96/5,124.72
  6. Step 6: Final answer
    x = 2,492.95

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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.