Home / 2,188.66-3,279.33-1,538.23

Finding the Fourth Proportional to 2,188.66, 3,279.33 and 1,538.23

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Solution

The fourth proportional to 2,188.66, 3,279.33 and 1,538.23 is: 2,304.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.66 : 3,279.33 = 1,538.23 : x
  2. Step 2: Convert to fraction form
    2,188.66/3,279.33 = 1,538.23/x
  3. Step 3: Cross multiply
    2,188.66x = 3,279.33 × 1,538.23
  4. Step 4: Simplify right side
    2,188.66x = 5,044,347.39
  5. Step 5: Solve for x
    x = 5,044,347.39/2,188.66
  6. Step 6: Final answer
    x = 2,304.77

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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.