Home / 2,422.98-3,344.49-1,638.09

Finding the Fourth Proportional to 2,422.98, 3,344.49 and 1,638.09

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Solution

The fourth proportional to 2,422.98, 3,344.49 and 1,638.09 is: 2,261.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.98 : 3,344.49 = 1,638.09 : x
  2. Step 2: Convert to fraction form
    2,422.98/3,344.49 = 1,638.09/x
  3. Step 3: Cross multiply
    2,422.98x = 3,344.49 × 1,638.09
  4. Step 4: Simplify right side
    2,422.98x = 5,478,575.62
  5. Step 5: Solve for x
    x = 5,478,575.62/2,422.98
  6. Step 6: Final answer
    x = 2,261.09

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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.