Home / 3,765.72-5,197.68-2,439.48

Finding the Fourth Proportional to 3,765.72, 5,197.68 and 2,439.48

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Solution

The fourth proportional to 3,765.72, 5,197.68 and 2,439.48 is: 3,367.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.72 : 5,197.68 = 2,439.48 : x
  2. Step 2: Convert to fraction form
    3,765.72/5,197.68 = 2,439.48/x
  3. Step 3: Cross multiply
    3,765.72x = 5,197.68 × 2,439.48
  4. Step 4: Simplify right side
    3,765.72x = 12,679,636.41
  5. Step 5: Solve for x
    x = 12,679,636.41/3,765.72
  6. Step 6: Final answer
    x = 3,367.12

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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.