Home / 7,488.54-11,229.55-3,977.78

Finding the Fourth Proportional to 7,488.54, 11,229.55 and 3,977.78

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Solution

The fourth proportional to 7,488.54, 11,229.55 and 3,977.78 is: 5,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.54 : 11,229.55 = 3,977.78 : x
  2. Step 2: Convert to fraction form
    7,488.54/11,229.55 = 3,977.78/x
  3. Step 3: Cross multiply
    7,488.54x = 11,229.55 × 3,977.78
  4. Step 4: Simplify right side
    7,488.54x = 44,668,613.31
  5. Step 5: Solve for x
    x = 44,668,613.31/7,488.54
  6. Step 6: Final answer
    x = 5,964.93

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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.