Home / 7,340.80-11,011.20-2,722.88

Finding the Fourth Proportional to 7,340.80, 11,011.20 and 2,722.88

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Solution

The fourth proportional to 7,340.80, 11,011.20 and 2,722.88 is: 4,084.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.80 : 11,011.20 = 2,722.88 : x
  2. Step 2: Convert to fraction form
    7,340.80/11,011.20 = 2,722.88/x
  3. Step 3: Cross multiply
    7,340.80x = 11,011.20 × 2,722.88
  4. Step 4: Simplify right side
    7,340.80x = 29,982,176.26
  5. Step 5: Solve for x
    x = 29,982,176.26/7,340.80
  6. Step 6: Final answer
    x = 4,084.32

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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.