Home / 1,868.34-2,578.31-1,082.85

Finding the Fourth Proportional to 1,868.34, 2,578.31 and 1,082.85

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Solution

The fourth proportional to 1,868.34, 2,578.31 and 1,082.85 is: 1,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.34 : 2,578.31 = 1,082.85 : x
  2. Step 2: Convert to fraction form
    1,868.34/2,578.31 = 1,082.85/x
  3. Step 3: Cross multiply
    1,868.34x = 2,578.31 × 1,082.85
  4. Step 4: Simplify right side
    1,868.34x = 2,791,918.05
  5. Step 5: Solve for x
    x = 2,791,918.05/1,868.34
  6. Step 6: Final answer
    x = 1,494.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.