Home / 10,660.55-15,990.75-2,869.36

Finding the Fourth Proportional to 10,660.55, 15,990.75 and 2,869.36

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Solution

The fourth proportional to 10,660.55, 15,990.75 and 2,869.36 is: 4,304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.55 : 15,990.75 = 2,869.36 : x
  2. Step 2: Convert to fraction form
    10,660.55/15,990.75 = 2,869.36/x
  3. Step 3: Cross multiply
    10,660.55x = 15,990.75 × 2,869.36
  4. Step 4: Simplify right side
    10,660.55x = 45,883,178.44
  5. Step 5: Solve for x
    x = 45,883,178.44/10,660.55
  6. Step 6: Final answer
    x = 4,304.02

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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.