Home / 2,181.68-3,010.80-1,250

Finding the Fourth Proportional to 2,181.68, 3,010.80 and 1,250

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Solution

The fourth proportional to 2,181.68, 3,010.80 and 1,250 is: 1,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.68 : 3,010.80 = 1,250 : x
  2. Step 2: Convert to fraction form
    2,181.68/3,010.80 = 1,250/x
  3. Step 3: Cross multiply
    2,181.68x = 3,010.80 × 1,250
  4. Step 4: Simplify right side
    2,181.68x = 3,763,500
  5. Step 5: Solve for x
    x = 3,763,500/2,181.68
  6. Step 6: Final answer
    x = 1,725.05

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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.