Home / 3,217.62-4,438.65-2,100.42

Finding the Fourth Proportional to 3,217.62, 4,438.65 and 2,100.42

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Solution

The fourth proportional to 3,217.62, 4,438.65 and 2,100.42 is: 2,897.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.62 : 4,438.65 = 2,100.42 : x
  2. Step 2: Convert to fraction form
    3,217.62/4,438.65 = 2,100.42/x
  3. Step 3: Cross multiply
    3,217.62x = 4,438.65 × 2,100.42
  4. Step 4: Simplify right side
    3,217.62x = 9,323,029.23
  5. Step 5: Solve for x
    x = 9,323,029.23/3,217.62
  6. Step 6: Final answer
    x = 2,897.49

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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.