Home / 2,910.44-4,013.64-1,915.28

Finding the Fourth Proportional to 2,910.44, 4,013.64 and 1,915.28

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Solution

The fourth proportional to 2,910.44, 4,013.64 and 1,915.28 is: 2,641.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.44 : 4,013.64 = 1,915.28 : x
  2. Step 2: Convert to fraction form
    2,910.44/4,013.64 = 1,915.28/x
  3. Step 3: Cross multiply
    2,910.44x = 4,013.64 × 1,915.28
  4. Step 4: Simplify right side
    2,910.44x = 7,687,244.42
  5. Step 5: Solve for x
    x = 7,687,244.42/2,910.44
  6. Step 6: Final answer
    x = 2,641.27

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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.