Home / 6,631.97-9,947.88-3,119.72

Finding the Fourth Proportional to 6,631.97, 9,947.88 and 3,119.72

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Solution

The fourth proportional to 6,631.97, 9,947.88 and 3,119.72 is: 4,679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.97 : 9,947.88 = 3,119.72 : x
  2. Step 2: Convert to fraction form
    6,631.97/9,947.88 = 3,119.72/x
  3. Step 3: Cross multiply
    6,631.97x = 9,947.88 × 3,119.72
  4. Step 4: Simplify right side
    6,631.97x = 31,034,550.45
  5. Step 5: Solve for x
    x = 31,034,550.45/6,631.97
  6. Step 6: Final answer
    x = 4,679.54

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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.