Home / 2,854.62-3,938.76-1,675.38

Finding the Fourth Proportional to 2,854.62, 3,938.76 and 1,675.38

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Solution

The fourth proportional to 2,854.62, 3,938.76 and 1,675.38 is: 2,311.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.62 : 3,938.76 = 1,675.38 : x
  2. Step 2: Convert to fraction form
    2,854.62/3,938.76 = 1,675.38/x
  3. Step 3: Cross multiply
    2,854.62x = 3,938.76 × 1,675.38
  4. Step 4: Simplify right side
    2,854.62x = 6,598,919.73
  5. Step 5: Solve for x
    x = 6,598,919.73/2,854.62
  6. Step 6: Final answer
    x = 2,311.66

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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.