Home / 3,621.12-4,996.80-2,876.88

Finding the Fourth Proportional to 3,621.12, 4,996.80 and 2,876.88

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Solution

The fourth proportional to 3,621.12, 4,996.80 and 2,876.88 is: 3,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.12 : 4,996.80 = 2,876.88 : x
  2. Step 2: Convert to fraction form
    3,621.12/4,996.80 = 2,876.88/x
  3. Step 3: Cross multiply
    3,621.12x = 4,996.80 × 2,876.88
  4. Step 4: Simplify right side
    3,621.12x = 14,375,193.98
  5. Step 5: Solve for x
    x = 14,375,193.98/3,621.12
  6. Step 6: Final answer
    x = 3,969.82

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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.