Home / 3,248.12-4,864.88-3,138.78

Finding the Fourth Proportional to 3,248.12, 4,864.88 and 3,138.78

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Solution

The fourth proportional to 3,248.12, 4,864.88 and 3,138.78 is: 4,701.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,248.12 : 4,864.88 = 3,138.78 : x
  2. Step 2: Convert to fraction form
    3,248.12/4,864.88 = 3,138.78/x
  3. Step 3: Cross multiply
    3,248.12x = 4,864.88 × 3,138.78
  4. Step 4: Simplify right side
    3,248.12x = 15,269,788.05
  5. Step 5: Solve for x
    x = 15,269,788.05/3,248.12
  6. Step 6: Final answer
    x = 4,701.12

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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.