Home / 5,255.31-7,883.13-1,967.78

Finding the Fourth Proportional to 5,255.31, 7,883.13 and 1,967.78

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Solution

The fourth proportional to 5,255.31, 7,883.13 and 1,967.78 is: 2,951.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.31 : 7,883.13 = 1,967.78 : x
  2. Step 2: Convert to fraction form
    5,255.31/7,883.13 = 1,967.78/x
  3. Step 3: Cross multiply
    5,255.31x = 7,883.13 × 1,967.78
  4. Step 4: Simplify right side
    5,255.31x = 15,512,226.14
  5. Step 5: Solve for x
    x = 15,512,226.14/5,255.31
  6. Step 6: Final answer
    x = 2,951.72

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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.