Home / 3,520.90-5,278.11-1,572.04

Finding the Fourth Proportional to 3,520.90, 5,278.11 and 1,572.04

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Solution

The fourth proportional to 3,520.90, 5,278.11 and 1,572.04 is: 2,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.90 : 5,278.11 = 1,572.04 : x
  2. Step 2: Convert to fraction form
    3,520.90/5,278.11 = 1,572.04/x
  3. Step 3: Cross multiply
    3,520.90x = 5,278.11 × 1,572.04
  4. Step 4: Simplify right side
    3,520.90x = 8,297,400.04
  5. Step 5: Solve for x
    x = 8,297,400.04/3,520.90
  6. Step 6: Final answer
    x = 2,356.61

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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.