Home / 5,116.60-7,672.20-1,829.80

Finding the Fourth Proportional to 5,116.60, 7,672.20 and 1,829.80

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Solution

The fourth proportional to 5,116.60, 7,672.20 and 1,829.80 is: 2,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.60 : 7,672.20 = 1,829.80 : x
  2. Step 2: Convert to fraction form
    5,116.60/7,672.20 = 1,829.80/x
  3. Step 3: Cross multiply
    5,116.60x = 7,672.20 × 1,829.80
  4. Step 4: Simplify right side
    5,116.60x = 14,038,591.56
  5. Step 5: Solve for x
    x = 14,038,591.56/5,116.60
  6. Step 6: Final answer
    x = 2,743.73

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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.