Home / 2,419.97-3,628.13-1,248.71

Finding the Fourth Proportional to 2,419.97, 3,628.13 and 1,248.71

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Solution

The fourth proportional to 2,419.97, 3,628.13 and 1,248.71 is: 1,872.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.97 : 3,628.13 = 1,248.71 : x
  2. Step 2: Convert to fraction form
    2,419.97/3,628.13 = 1,248.71/x
  3. Step 3: Cross multiply
    2,419.97x = 3,628.13 × 1,248.71
  4. Step 4: Simplify right side
    2,419.97x = 4,530,457.83
  5. Step 5: Solve for x
    x = 4,530,457.83/2,419.97
  6. Step 6: Final answer
    x = 1,872.12

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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.