Home / 2,188.08-3,279.96-1,407.96

Finding the Fourth Proportional to 2,188.08, 3,279.96 and 1,407.96

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Solution

The fourth proportional to 2,188.08, 3,279.96 and 1,407.96 is: 2,110.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.08 : 3,279.96 = 1,407.96 : x
  2. Step 2: Convert to fraction form
    2,188.08/3,279.96 = 1,407.96/x
  3. Step 3: Cross multiply
    2,188.08x = 3,279.96 × 1,407.96
  4. Step 4: Simplify right side
    2,188.08x = 4,618,052.48
  5. Step 5: Solve for x
    x = 4,618,052.48/2,188.08
  6. Step 6: Final answer
    x = 2,110.55

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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.