Home / 2,489.92-3,434.40-1,441.60

Finding the Fourth Proportional to 2,489.92, 3,434.40 and 1,441.60

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Solution

The fourth proportional to 2,489.92, 3,434.40 and 1,441.60 is: 1,988.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.92 : 3,434.40 = 1,441.60 : x
  2. Step 2: Convert to fraction form
    2,489.92/3,434.40 = 1,441.60/x
  3. Step 3: Cross multiply
    2,489.92x = 3,434.40 × 1,441.60
  4. Step 4: Simplify right side
    2,489.92x = 4,951,031.04
  5. Step 5: Solve for x
    x = 4,951,031.04/2,489.92
  6. Step 6: Final answer
    x = 1,988.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.