Home / 7,799.20-11,703.92-2,868.88

Finding the Fourth Proportional to 7,799.20, 11,703.92 and 2,868.88

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Solution

The fourth proportional to 7,799.20, 11,703.92 and 2,868.88 is: 4,305.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.20 : 11,703.92 = 2,868.88 : x
  2. Step 2: Convert to fraction form
    7,799.20/11,703.92 = 2,868.88/x
  3. Step 3: Cross multiply
    7,799.20x = 11,703.92 × 2,868.88
  4. Step 4: Simplify right side
    7,799.20x = 33,577,142.01
  5. Step 5: Solve for x
    x = 33,577,142.01/7,799.20
  6. Step 6: Final answer
    x = 4,305.20

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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.