Home / 2,188.68-3,020.26-1,244.42

Finding the Fourth Proportional to 2,188.68, 3,020.26 and 1,244.42

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Solution

The fourth proportional to 2,188.68, 3,020.26 and 1,244.42 is: 1,717.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.68 : 3,020.26 = 1,244.42 : x
  2. Step 2: Convert to fraction form
    2,188.68/3,020.26 = 1,244.42/x
  3. Step 3: Cross multiply
    2,188.68x = 3,020.26 × 1,244.42
  4. Step 4: Simplify right side
    2,188.68x = 3,758,471.95
  5. Step 5: Solve for x
    x = 3,758,471.95/2,188.68
  6. Step 6: Final answer
    x = 1,717.23

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1.5x scale

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.