Home / 2,254.73-3,111.62-1,260

Finding the Fourth Proportional to 2,254.73, 3,111.62 and 1,260

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Solution

The fourth proportional to 2,254.73, 3,111.62 and 1,260 is: 1,738.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.73 : 3,111.62 = 1,260 : x
  2. Step 2: Convert to fraction form
    2,254.73/3,111.62 = 1,260/x
  3. Step 3: Cross multiply
    2,254.73x = 3,111.62 × 1,260
  4. Step 4: Simplify right side
    2,254.73x = 3,920,641.20
  5. Step 5: Solve for x
    x = 3,920,641.20/2,254.73
  6. Step 6: Final answer
    x = 1,738.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.