Home / 2,450.22-3,381.38-1,387.96

Finding the Fourth Proportional to 2,450.22, 3,381.38 and 1,387.96

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Solution

The fourth proportional to 2,450.22, 3,381.38 and 1,387.96 is: 1,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.22 : 3,381.38 = 1,387.96 : x
  2. Step 2: Convert to fraction form
    2,450.22/3,381.38 = 1,387.96/x
  3. Step 3: Cross multiply
    2,450.22x = 3,381.38 × 1,387.96
  4. Step 4: Simplify right side
    2,450.22x = 4,693,220.18
  5. Step 5: Solve for x
    x = 4,693,220.18/2,450.22
  6. Step 6: Final answer
    x = 1,915.43

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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.