Home / 3,915.44-5,404.32-2,422.48

Finding the Fourth Proportional to 3,915.44, 5,404.32 and 2,422.48

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Solution

The fourth proportional to 3,915.44, 5,404.32 and 2,422.48 is: 3,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915.44 : 5,404.32 = 2,422.48 : x
  2. Step 2: Convert to fraction form
    3,915.44/5,404.32 = 2,422.48/x
  3. Step 3: Cross multiply
    3,915.44x = 5,404.32 × 2,422.48
  4. Step 4: Simplify right side
    3,915.44x = 13,091,857.11
  5. Step 5: Solve for x
    x = 13,091,857.11/3,915.44
  6. Step 6: Final answer
    x = 3,343.65

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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.