Home / 2,305.40-3,181.52-1,257.52

Finding the Fourth Proportional to 2,305.40, 3,181.52 and 1,257.52

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Solution

The fourth proportional to 2,305.40, 3,181.52 and 1,257.52 is: 1,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.40 : 3,181.52 = 1,257.52 : x
  2. Step 2: Convert to fraction form
    2,305.40/3,181.52 = 1,257.52/x
  3. Step 3: Cross multiply
    2,305.40x = 3,181.52 × 1,257.52
  4. Step 4: Simplify right side
    2,305.40x = 4,000,825.03
  5. Step 5: Solve for x
    x = 4,000,825.03/2,305.40
  6. Step 6: Final answer
    x = 1,735.41

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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.