Home / 2,791.18-3,851.50-1,671.96

Finding the Fourth Proportional to 2,791.18, 3,851.50 and 1,671.96

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Solution

The fourth proportional to 2,791.18, 3,851.50 and 1,671.96 is: 2,307.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791.18 : 3,851.50 = 1,671.96 : x
  2. Step 2: Convert to fraction form
    2,791.18/3,851.50 = 1,671.96/x
  3. Step 3: Cross multiply
    2,791.18x = 3,851.50 × 1,671.96
  4. Step 4: Simplify right side
    2,791.18x = 6,439,540.13
  5. Step 5: Solve for x
    x = 6,439,540.13/2,791.18
  6. Step 6: Final answer
    x = 2,307.11

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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.