Home / 2,851.26-3,934.80-1,672.89

Finding the Fourth Proportional to 2,851.26, 3,934.80 and 1,672.89

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Solution

The fourth proportional to 2,851.26, 3,934.80 and 1,672.89 is: 2,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.26 : 3,934.80 = 1,672.89 : x
  2. Step 2: Convert to fraction form
    2,851.26/3,934.80 = 1,672.89/x
  3. Step 3: Cross multiply
    2,851.26x = 3,934.80 × 1,672.89
  4. Step 4: Simplify right side
    2,851.26x = 6,582,487.57
  5. Step 5: Solve for x
    x = 6,582,487.57/2,851.26
  6. Step 6: Final answer
    x = 2,308.62

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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.