Home / 2,643.29-3,964.36-1,082.89

Finding the Fourth Proportional to 2,643.29, 3,964.36 and 1,082.89

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Solution

The fourth proportional to 2,643.29, 3,964.36 and 1,082.89 is: 1,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.29 : 3,964.36 = 1,082.89 : x
  2. Step 2: Convert to fraction form
    2,643.29/3,964.36 = 1,082.89/x
  3. Step 3: Cross multiply
    2,643.29x = 3,964.36 × 1,082.89
  4. Step 4: Simplify right side
    2,643.29x = 4,292,965.80
  5. Step 5: Solve for x
    x = 4,292,965.80/2,643.29
  6. Step 6: Final answer
    x = 1,624.10

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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.