Home / 8,760.40-13,140.70-2,917

Finding the Fourth Proportional to 8,760.40, 13,140.70 and 2,917

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Solution

The fourth proportional to 8,760.40, 13,140.70 and 2,917 is: 4,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.40 : 13,140.70 = 2,917 : x
  2. Step 2: Convert to fraction form
    8,760.40/13,140.70 = 2,917/x
  3. Step 3: Cross multiply
    8,760.40x = 13,140.70 × 2,917
  4. Step 4: Simplify right side
    8,760.40x = 38,331,421.90
  5. Step 5: Solve for x
    x = 38,331,421.90/8,760.40
  6. Step 6: Final answer
    x = 4,375.53

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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.