Home / 3,975.50-5,486.19-2,207.39

Finding the Fourth Proportional to 3,975.50, 5,486.19 and 2,207.39

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Solution

The fourth proportional to 3,975.50, 5,486.19 and 2,207.39 is: 3,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.50 : 5,486.19 = 2,207.39 : x
  2. Step 2: Convert to fraction form
    3,975.50/5,486.19 = 2,207.39/x
  3. Step 3: Cross multiply
    3,975.50x = 5,486.19 × 2,207.39
  4. Step 4: Simplify right side
    3,975.50x = 12,110,160.94
  5. Step 5: Solve for x
    x = 12,110,160.94/3,975.50
  6. Step 6: Final answer
    x = 3,046.20

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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.