Home / 4,876.20-6,729.21-2,961.47

Finding the Fourth Proportional to 4,876.20, 6,729.21 and 2,961.47

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Solution

The fourth proportional to 4,876.20, 6,729.21 and 2,961.47 is: 4,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.20 : 6,729.21 = 2,961.47 : x
  2. Step 2: Convert to fraction form
    4,876.20/6,729.21 = 2,961.47/x
  3. Step 3: Cross multiply
    4,876.20x = 6,729.21 × 2,961.47
  4. Step 4: Simplify right side
    4,876.20x = 19,928,319.89
  5. Step 5: Solve for x
    x = 19,928,319.89/4,876.20
  6. Step 6: Final answer
    x = 4,086.85

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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.