Home / 7,449.35-11,178.39-2,772.62

Finding the Fourth Proportional to 7,449.35, 11,178.39 and 2,772.62

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Solution

The fourth proportional to 7,449.35, 11,178.39 and 2,772.62 is: 4,160.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.35 : 11,178.39 = 2,772.62 : x
  2. Step 2: Convert to fraction form
    7,449.35/11,178.39 = 2,772.62/x
  3. Step 3: Cross multiply
    7,449.35x = 11,178.39 × 2,772.62
  4. Step 4: Simplify right side
    7,449.35x = 30,993,371.79
  5. Step 5: Solve for x
    x = 30,993,371.79/7,449.35
  6. Step 6: Final answer
    x = 4,160.55

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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.