Home / 2,418.29-3,625.98-1,321.13

Finding the Fourth Proportional to 2,418.29, 3,625.98 and 1,321.13

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Solution

The fourth proportional to 2,418.29, 3,625.98 and 1,321.13 is: 1,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.29 : 3,625.98 = 1,321.13 : x
  2. Step 2: Convert to fraction form
    2,418.29/3,625.98 = 1,321.13/x
  3. Step 3: Cross multiply
    2,418.29x = 3,625.98 × 1,321.13
  4. Step 4: Simplify right side
    2,418.29x = 4,790,390.96
  5. Step 5: Solve for x
    x = 4,790,390.96/2,418.29
  6. Step 6: Final answer
    x = 1,980.90

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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.