Home / 6,378.15-9,549.45-3,251.40

Finding the Fourth Proportional to 6,378.15, 9,549.45 and 3,251.40

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Solution

The fourth proportional to 6,378.15, 9,549.45 and 3,251.40 is: 4,868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.15 : 9,549.45 = 3,251.40 : x
  2. Step 2: Convert to fraction form
    6,378.15/9,549.45 = 3,251.40/x
  3. Step 3: Cross multiply
    6,378.15x = 9,549.45 × 3,251.40
  4. Step 4: Simplify right side
    6,378.15x = 31,049,081.73
  5. Step 5: Solve for x
    x = 31,049,081.73/6,378.15
  6. Step 6: Final answer
    x = 4,868.04

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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.