Home / 2,125.44-3,185.66-1,248.38

Finding the Fourth Proportional to 2,125.44, 3,185.66 and 1,248.38

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Solution

The fourth proportional to 2,125.44, 3,185.66 and 1,248.38 is: 1,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.44 : 3,185.66 = 1,248.38 : x
  2. Step 2: Convert to fraction form
    2,125.44/3,185.66 = 1,248.38/x
  3. Step 3: Cross multiply
    2,125.44x = 3,185.66 × 1,248.38
  4. Step 4: Simplify right side
    2,125.44x = 3,976,892.06
  5. Step 5: Solve for x
    x = 3,976,892.06/2,125.44
  6. Step 6: Final answer
    x = 1,871.09

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1.5x scale

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.