Home / 5,519.80-7,614.65-3,280.09

Finding the Fourth Proportional to 5,519.80, 7,614.65 and 3,280.09

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Solution

The fourth proportional to 5,519.80, 7,614.65 and 3,280.09 is: 4,524.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.80 : 7,614.65 = 3,280.09 : x
  2. Step 2: Convert to fraction form
    5,519.80/7,614.65 = 3,280.09/x
  3. Step 3: Cross multiply
    5,519.80x = 7,614.65 × 3,280.09
  4. Step 4: Simplify right side
    5,519.80x = 24,976,720.92
  5. Step 5: Solve for x
    x = 24,976,720.92/5,519.80
  6. Step 6: Final answer
    x = 4,524.93

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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.