Home / 2,407.89-3,605.32-1,251.21

Finding the Fourth Proportional to 2,407.89, 3,605.32 and 1,251.21

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Solution

The fourth proportional to 2,407.89, 3,605.32 and 1,251.21 is: 1,873.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,407.89 : 3,605.32 = 1,251.21 : x
  2. Step 2: Convert to fraction form
    2,407.89/3,605.32 = 1,251.21/x
  3. Step 3: Cross multiply
    2,407.89x = 3,605.32 × 1,251.21
  4. Step 4: Simplify right side
    2,407.89x = 4,511,027.52
  5. Step 5: Solve for x
    x = 4,511,027.52/2,407.89
  6. Step 6: Final answer
    x = 1,873.43

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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.