Home / 7,874.18-11,812.92-2,608.88

Finding the Fourth Proportional to 7,874.18, 11,812.92 and 2,608.88

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Solution

The fourth proportional to 7,874.18, 11,812.92 and 2,608.88 is: 3,913.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.18 : 11,812.92 = 2,608.88 : x
  2. Step 2: Convert to fraction form
    7,874.18/11,812.92 = 2,608.88/x
  3. Step 3: Cross multiply
    7,874.18x = 11,812.92 × 2,608.88
  4. Step 4: Simplify right side
    7,874.18x = 30,818,520.26
  5. Step 5: Solve for x
    x = 30,818,520.26/7,874.18
  6. Step 6: Final answer
    x = 3,913.87

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1.5x scale

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.