Home / 1,868.67-2,578.82-1,029.44

Finding the Fourth Proportional to 1,868.67, 2,578.82 and 1,029.44

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Solution

The fourth proportional to 1,868.67, 2,578.82 and 1,029.44 is: 1,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.67 : 2,578.82 = 1,029.44 : x
  2. Step 2: Convert to fraction form
    1,868.67/2,578.82 = 1,029.44/x
  3. Step 3: Cross multiply
    1,868.67x = 2,578.82 × 1,029.44
  4. Step 4: Simplify right side
    1,868.67x = 2,654,722.42
  5. Step 5: Solve for x
    x = 2,654,722.42/1,868.67
  6. Step 6: Final answer
    x = 1,420.65

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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.