Home / 2,638.74-3,956.96-1,252.48

Finding the Fourth Proportional to 2,638.74, 3,956.96 and 1,252.48

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Solution

The fourth proportional to 2,638.74, 3,956.96 and 1,252.48 is: 1,878.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.74 : 3,956.96 = 1,252.48 : x
  2. Step 2: Convert to fraction form
    2,638.74/3,956.96 = 1,252.48/x
  3. Step 3: Cross multiply
    2,638.74x = 3,956.96 × 1,252.48
  4. Step 4: Simplify right side
    2,638.74x = 4,955,987.21
  5. Step 5: Solve for x
    x = 4,955,987.21/2,638.74
  6. Step 6: Final answer
    x = 1,878.16

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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.