Home / 10,207.88-15,310.42-2,811.27

Finding the Fourth Proportional to 10,207.88, 15,310.42 and 2,811.27

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Solution

The fourth proportional to 10,207.88, 15,310.42 and 2,811.27 is: 4,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.88 : 15,310.42 = 2,811.27 : x
  2. Step 2: Convert to fraction form
    10,207.88/15,310.42 = 2,811.27/x
  3. Step 3: Cross multiply
    10,207.88x = 15,310.42 × 2,811.27
  4. Step 4: Simplify right side
    10,207.88x = 43,041,710.38
  5. Step 5: Solve for x
    x = 43,041,710.38/10,207.88
  6. Step 6: Final answer
    x = 4,216.52

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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.