Home / 5,474.90-8,199.19-3,127.80

Finding the Fourth Proportional to 5,474.90, 8,199.19 and 3,127.80

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Solution

The fourth proportional to 5,474.90, 8,199.19 and 3,127.80 is: 4,684.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.90 : 8,199.19 = 3,127.80 : x
  2. Step 2: Convert to fraction form
    5,474.90/8,199.19 = 3,127.80/x
  3. Step 3: Cross multiply
    5,474.90x = 8,199.19 × 3,127.80
  4. Step 4: Simplify right side
    5,474.90x = 25,645,426.48
  5. Step 5: Solve for x
    x = 25,645,426.48/5,474.90
  6. Step 6: Final answer
    x = 4,684.18

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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.