Home / 10,154.49-15,231.66-2,758.92

Finding the Fourth Proportional to 10,154.49, 15,231.66 and 2,758.92

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Solution

The fourth proportional to 10,154.49, 15,231.66 and 2,758.92 is: 4,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.49 : 15,231.66 = 2,758.92 : x
  2. Step 2: Convert to fraction form
    10,154.49/15,231.66 = 2,758.92/x
  3. Step 3: Cross multiply
    10,154.49x = 15,231.66 × 2,758.92
  4. Step 4: Simplify right side
    10,154.49x = 42,022,931.41
  5. Step 5: Solve for x
    x = 42,022,931.41/10,154.49
  6. Step 6: Final answer
    x = 4,138.36

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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.