Home / 3,894.12-5,842.56-2,431.56

Finding the Fourth Proportional to 3,894.12, 5,842.56 and 2,431.56

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Solution

The fourth proportional to 3,894.12, 5,842.56 and 2,431.56 is: 3,648.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.12 : 5,842.56 = 2,431.56 : x
  2. Step 2: Convert to fraction form
    3,894.12/5,842.56 = 2,431.56/x
  3. Step 3: Cross multiply
    3,894.12x = 5,842.56 × 2,431.56
  4. Step 4: Simplify right side
    3,894.12x = 14,206,535.19
  5. Step 5: Solve for x
    x = 14,206,535.19/3,894.12
  6. Step 6: Final answer
    x = 3,648.20

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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.