Home / 4,761.90-7,142.76-1,838.52

Finding the Fourth Proportional to 4,761.90, 7,142.76 and 1,838.52

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Solution

The fourth proportional to 4,761.90, 7,142.76 and 1,838.52 is: 2,757.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.90 : 7,142.76 = 1,838.52 : x
  2. Step 2: Convert to fraction form
    4,761.90/7,142.76 = 1,838.52/x
  3. Step 3: Cross multiply
    4,761.90x = 7,142.76 × 1,838.52
  4. Step 4: Simplify right side
    4,761.90x = 13,132,107.12
  5. Step 5: Solve for x
    x = 13,132,107.12/4,761.90
  6. Step 6: Final answer
    x = 2,757.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.