Home / 3,250.12-4,867.88-3,140.78

Finding the Fourth Proportional to 3,250.12, 4,867.88 and 3,140.78

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Solution

The fourth proportional to 3,250.12, 4,867.88 and 3,140.78 is: 4,704.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,250.12 : 4,867.88 = 3,140.78 : x
  2. Step 2: Convert to fraction form
    3,250.12/4,867.88 = 3,140.78/x
  3. Step 3: Cross multiply
    3,250.12x = 4,867.88 × 3,140.78
  4. Step 4: Simplify right side
    3,250.12x = 15,288,940.15
  5. Step 5: Solve for x
    x = 15,288,940.15/3,250.12
  6. Step 6: Final answer
    x = 4,704.12

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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.