Home / 3,212.60-4,820.72-2,117.48

Finding the Fourth Proportional to 3,212.60, 4,820.72 and 2,117.48

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Solution

The fourth proportional to 3,212.60, 4,820.72 and 2,117.48 is: 3,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.60 : 4,820.72 = 2,117.48 : x
  2. Step 2: Convert to fraction form
    3,212.60/4,820.72 = 2,117.48/x
  3. Step 3: Cross multiply
    3,212.60x = 4,820.72 × 2,117.48
  4. Step 4: Simplify right side
    3,212.60x = 10,207,743.49
  5. Step 5: Solve for x
    x = 10,207,743.49/3,212.60
  6. Step 6: Final answer
    x = 3,177.41

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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.