Home / 10,660.95-15,991.41-2,869.77

Finding the Fourth Proportional to 10,660.95, 15,991.41 and 2,869.77

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Solution

The fourth proportional to 10,660.95, 15,991.41 and 2,869.77 is: 4,304.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.95 : 15,991.41 = 2,869.77 : x
  2. Step 2: Convert to fraction form
    10,660.95/15,991.41 = 2,869.77/x
  3. Step 3: Cross multiply
    10,660.95x = 15,991.41 × 2,869.77
  4. Step 4: Simplify right side
    10,660.95x = 45,891,668.68
  5. Step 5: Solve for x
    x = 45,891,668.68/10,660.95
  6. Step 6: Final answer
    x = 4,304.65

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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.