Home / 2,660.60-3,984.82-1,274.92

Finding the Fourth Proportional to 2,660.60, 3,984.82 and 1,274.92

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Solution

The fourth proportional to 2,660.60, 3,984.82 and 1,274.92 is: 1,909.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.60 : 3,984.82 = 1,274.92 : x
  2. Step 2: Convert to fraction form
    2,660.60/3,984.82 = 1,274.92/x
  3. Step 3: Cross multiply
    2,660.60x = 3,984.82 × 1,274.92
  4. Step 4: Simplify right side
    2,660.60x = 5,080,313.57
  5. Step 5: Solve for x
    x = 5,080,313.57/2,660.60
  6. Step 6: Final answer
    x = 1,909.46

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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.