Home / 1,456.29-2,181.65-1,226.61

Finding the Fourth Proportional to 1,456.29, 2,181.65 and 1,226.61

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Solution

The fourth proportional to 1,456.29, 2,181.65 and 1,226.61 is: 1,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.29 : 2,181.65 = 1,226.61 : x
  2. Step 2: Convert to fraction form
    1,456.29/2,181.65 = 1,226.61/x
  3. Step 3: Cross multiply
    1,456.29x = 2,181.65 × 1,226.61
  4. Step 4: Simplify right side
    1,456.29x = 2,676,027.57
  5. Step 5: Solve for x
    x = 2,676,027.57/1,456.29
  6. Step 6: Final answer
    x = 1,837.57

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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.