Home / 2,729.71-4,092.54-1,909.45

Finding the Fourth Proportional to 2,729.71, 4,092.54 and 1,909.45

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Solution

The fourth proportional to 2,729.71, 4,092.54 and 1,909.45 is: 2,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.71 : 4,092.54 = 1,909.45 : x
  2. Step 2: Convert to fraction form
    2,729.71/4,092.54 = 1,909.45/x
  3. Step 3: Cross multiply
    2,729.71x = 4,092.54 × 1,909.45
  4. Step 4: Simplify right side
    2,729.71x = 7,814,500.50
  5. Step 5: Solve for x
    x = 7,814,500.50/2,729.71
  6. Step 6: Final answer
    x = 2,862.76

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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.