Home / 3,111.62-4,290.45-2,324.30

Finding the Fourth Proportional to 3,111.62, 4,290.45 and 2,324.30

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Solution

The fourth proportional to 3,111.62, 4,290.45 and 2,324.30 is: 3,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.62 : 4,290.45 = 2,324.30 : x
  2. Step 2: Convert to fraction form
    3,111.62/4,290.45 = 2,324.30/x
  3. Step 3: Cross multiply
    3,111.62x = 4,290.45 × 2,324.30
  4. Step 4: Simplify right side
    3,111.62x = 9,972,292.94
  5. Step 5: Solve for x
    x = 9,972,292.94/3,111.62
  6. Step 6: Final answer
    x = 3,204.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.