Home / 2,149.08-3,223.45-1,521.79

Finding the Fourth Proportional to 2,149.08, 3,223.45 and 1,521.79

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Solution

The fourth proportional to 2,149.08, 3,223.45 and 1,521.79 is: 2,282.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.08 : 3,223.45 = 1,521.79 : x
  2. Step 2: Convert to fraction form
    2,149.08/3,223.45 = 1,521.79/x
  3. Step 3: Cross multiply
    2,149.08x = 3,223.45 × 1,521.79
  4. Step 4: Simplify right side
    2,149.08x = 4,905,399.26
  5. Step 5: Solve for x
    x = 4,905,399.26/2,149.08
  6. Step 6: Final answer
    x = 2,282.56

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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.