Home / 3,447.90-4,759.56-2,189.03

Finding the Fourth Proportional to 3,447.90, 4,759.56 and 2,189.03

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Solution

The fourth proportional to 3,447.90, 4,759.56 and 2,189.03 is: 3,021.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.90 : 4,759.56 = 2,189.03 : x
  2. Step 2: Convert to fraction form
    3,447.90/4,759.56 = 2,189.03/x
  3. Step 3: Cross multiply
    3,447.90x = 4,759.56 × 2,189.03
  4. Step 4: Simplify right side
    3,447.90x = 10,418,795.83
  5. Step 5: Solve for x
    x = 10,418,795.83/3,447.90
  6. Step 6: Final answer
    x = 3,021.78

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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.