Home / 2,429.78-3,650.97-2,122.46

Finding the Fourth Proportional to 2,429.78, 3,650.97 and 2,122.46

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Solution

The fourth proportional to 2,429.78, 3,650.97 and 2,122.46 is: 3,189.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.78 : 3,650.97 = 2,122.46 : x
  2. Step 2: Convert to fraction form
    2,429.78/3,650.97 = 2,122.46/x
  3. Step 3: Cross multiply
    2,429.78x = 3,650.97 × 2,122.46
  4. Step 4: Simplify right side
    2,429.78x = 7,749,037.79
  5. Step 5: Solve for x
    x = 7,749,037.79/2,429.78
  6. Step 6: Final answer
    x = 3,189.19

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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.