Home / 2,721.38-4,083.90-966.32

Finding the Fourth Proportional to 2,721.38, 4,083.90 and 966.32

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Solution

The fourth proportional to 2,721.38, 4,083.90 and 966.32 is: 1,450.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.38 : 4,083.90 = 966.32 : x
  2. Step 2: Convert to fraction form
    2,721.38/4,083.90 = 966.32/x
  3. Step 3: Cross multiply
    2,721.38x = 4,083.90 × 966.32
  4. Step 4: Simplify right side
    2,721.38x = 3,946,330.20
  5. Step 5: Solve for x
    x = 3,946,330.20/2,721.38
  6. Step 6: Final answer
    x = 1,450.12

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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.