Home / 3,748.20-5,169.86-2,488.62

Finding the Fourth Proportional to 3,748.20, 5,169.86 and 2,488.62

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Solution

The fourth proportional to 3,748.20, 5,169.86 and 2,488.62 is: 3,432.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.20 : 5,169.86 = 2,488.62 : x
  2. Step 2: Convert to fraction form
    3,748.20/5,169.86 = 2,488.62/x
  3. Step 3: Cross multiply
    3,748.20x = 5,169.86 × 2,488.62
  4. Step 4: Simplify right side
    3,748.20x = 12,865,843.77
  5. Step 5: Solve for x
    x = 12,865,843.77/3,748.20
  6. Step 6: Final answer
    x = 3,432.54

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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.