Home / 2,181.06-3,272.85-1,257.03

Finding the Fourth Proportional to 2,181.06, 3,272.85 and 1,257.03

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Solution

The fourth proportional to 2,181.06, 3,272.85 and 1,257.03 is: 1,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.06 : 3,272.85 = 1,257.03 : x
  2. Step 2: Convert to fraction form
    2,181.06/3,272.85 = 1,257.03/x
  3. Step 3: Cross multiply
    2,181.06x = 3,272.85 × 1,257.03
  4. Step 4: Simplify right side
    2,181.06x = 4,114,070.64
  5. Step 5: Solve for x
    x = 4,114,070.64/2,181.06
  6. Step 6: Final answer
    x = 1,886.27

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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.