Home / 4,272.70-6,409.07-2,079.55

Finding the Fourth Proportional to 4,272.70, 6,409.07 and 2,079.55

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Solution

The fourth proportional to 4,272.70, 6,409.07 and 2,079.55 is: 3,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.70 : 6,409.07 = 2,079.55 : x
  2. Step 2: Convert to fraction form
    4,272.70/6,409.07 = 2,079.55/x
  3. Step 3: Cross multiply
    4,272.70x = 6,409.07 × 2,079.55
  4. Step 4: Simplify right side
    4,272.70x = 13,327,971.12
  5. Step 5: Solve for x
    x = 13,327,971.12/4,272.70
  6. Step 6: Final answer
    x = 3,119.33

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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.