Home / 3,275.12-4,912.80-966.80

Finding the Fourth Proportional to 3,275.12, 4,912.80 and 966.80

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Solution

The fourth proportional to 3,275.12, 4,912.80 and 966.80 is: 1,450.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.12 : 4,912.80 = 966.80 : x
  2. Step 2: Convert to fraction form
    3,275.12/4,912.80 = 966.80/x
  3. Step 3: Cross multiply
    3,275.12x = 4,912.80 × 966.80
  4. Step 4: Simplify right side
    3,275.12x = 4,749,695.04
  5. Step 5: Solve for x
    x = 4,749,695.04/3,275.12
  6. Step 6: Final answer
    x = 1,450.24

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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.