Home / 5,112.60-7,668.90-1,649.88

Finding the Fourth Proportional to 5,112.60, 7,668.90 and 1,649.88

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Solution

The fourth proportional to 5,112.60, 7,668.90 and 1,649.88 is: 2,474.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.60 : 7,668.90 = 1,649.88 : x
  2. Step 2: Convert to fraction form
    5,112.60/7,668.90 = 1,649.88/x
  3. Step 3: Cross multiply
    5,112.60x = 7,668.90 × 1,649.88
  4. Step 4: Simplify right side
    5,112.60x = 12,652,764.73
  5. Step 5: Solve for x
    x = 12,652,764.73/5,112.60
  6. Step 6: Final answer
    x = 2,474.82

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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.