Home / 3,924.30-5,887.38-1,291.85

Finding the Fourth Proportional to 3,924.30, 5,887.38 and 1,291.85

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Solution

The fourth proportional to 3,924.30, 5,887.38 and 1,291.85 is: 1,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.30 : 5,887.38 = 1,291.85 : x
  2. Step 2: Convert to fraction form
    3,924.30/5,887.38 = 1,291.85/x
  3. Step 3: Cross multiply
    3,924.30x = 5,887.38 × 1,291.85
  4. Step 4: Simplify right side
    3,924.30x = 7,605,609.34
  5. Step 5: Solve for x
    x = 7,605,609.34/3,924.30
  6. Step 6: Final answer
    x = 1,938.08

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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.