Home / 4,972.88-6,861.92-3,083.78

Finding the Fourth Proportional to 4,972.88, 6,861.92 and 3,083.78

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Solution

The fourth proportional to 4,972.88, 6,861.92 and 3,083.78 is: 4,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972.88 : 6,861.92 = 3,083.78 : x
  2. Step 2: Convert to fraction form
    4,972.88/6,861.92 = 3,083.78/x
  3. Step 3: Cross multiply
    4,972.88x = 6,861.92 × 3,083.78
  4. Step 4: Simplify right side
    4,972.88x = 21,160,627.66
  5. Step 5: Solve for x
    x = 21,160,627.66/4,972.88
  6. Step 6: Final answer
    x = 4,255.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.