Home / 3,729.24-5,590.62-2,187

Finding the Fourth Proportional to 3,729.24, 5,590.62 and 2,187

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Solution

The fourth proportional to 3,729.24, 5,590.62 and 2,187 is: 3,278.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.24 : 5,590.62 = 2,187 : x
  2. Step 2: Convert to fraction form
    3,729.24/5,590.62 = 2,187/x
  3. Step 3: Cross multiply
    3,729.24x = 5,590.62 × 2,187
  4. Step 4: Simplify right side
    3,729.24x = 12,226,685.94
  5. Step 5: Solve for x
    x = 12,226,685.94/3,729.24
  6. Step 6: Final answer
    x = 3,278.60

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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.