Home / 3,650.90-5,475-2,872.42

Finding the Fourth Proportional to 3,650.90, 5,475 and 2,872.42

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Solution

The fourth proportional to 3,650.90, 5,475 and 2,872.42 is: 4,307.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.90 : 5,475 = 2,872.42 : x
  2. Step 2: Convert to fraction form
    3,650.90/5,475 = 2,872.42/x
  3. Step 3: Cross multiply
    3,650.90x = 5,475 × 2,872.42
  4. Step 4: Simplify right side
    3,650.90x = 15,726,499.50
  5. Step 5: Solve for x
    x = 15,726,499.50/3,650.90
  6. Step 6: Final answer
    x = 4,307.57

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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.