Home / 4,876.26-6,729.15-2,780.22

Finding the Fourth Proportional to 4,876.26, 6,729.15 and 2,780.22

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Solution

The fourth proportional to 4,876.26, 6,729.15 and 2,780.22 is: 3,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.26 : 6,729.15 = 2,780.22 : x
  2. Step 2: Convert to fraction form
    4,876.26/6,729.15 = 2,780.22/x
  3. Step 3: Cross multiply
    4,876.26x = 6,729.15 × 2,780.22
  4. Step 4: Simplify right side
    4,876.26x = 18,708,517.41
  5. Step 5: Solve for x
    x = 18,708,517.41/4,876.26
  6. Step 6: Final answer
    x = 3,836.65

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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.