Home / 2,429.60-3,645.76-1,908.36

Finding the Fourth Proportional to 2,429.60, 3,645.76 and 1,908.36

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Solution

The fourth proportional to 2,429.60, 3,645.76 and 1,908.36 is: 2,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.60 : 3,645.76 = 1,908.36 : x
  2. Step 2: Convert to fraction form
    2,429.60/3,645.76 = 1,908.36/x
  3. Step 3: Cross multiply
    2,429.60x = 3,645.76 × 1,908.36
  4. Step 4: Simplify right side
    2,429.60x = 6,957,422.55
  5. Step 5: Solve for x
    x = 6,957,422.55/2,429.60
  6. Step 6: Final answer
    x = 2,863.61

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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.