Home / 5,255.70-7,886.61-2,917.66

Finding the Fourth Proportional to 5,255.70, 7,886.61 and 2,917.66

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Solution

The fourth proportional to 5,255.70, 7,886.61 and 2,917.66 is: 4,378.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.70 : 7,886.61 = 2,917.66 : x
  2. Step 2: Convert to fraction form
    5,255.70/7,886.61 = 2,917.66/x
  3. Step 3: Cross multiply
    5,255.70x = 7,886.61 × 2,917.66
  4. Step 4: Simplify right side
    5,255.70x = 23,010,446.53
  5. Step 5: Solve for x
    x = 23,010,446.53/5,255.70
  6. Step 6: Final answer
    x = 4,378.19

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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.