Home / 1,915.03-2,871.33-1,092.88

Finding the Fourth Proportional to 1,915.03, 2,871.33 and 1,092.88

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Solution

The fourth proportional to 1,915.03, 2,871.33 and 1,092.88 is: 1,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.03 : 2,871.33 = 1,092.88 : x
  2. Step 2: Convert to fraction form
    1,915.03/2,871.33 = 1,092.88/x
  3. Step 3: Cross multiply
    1,915.03x = 2,871.33 × 1,092.88
  4. Step 4: Simplify right side
    1,915.03x = 3,138,019.13
  5. Step 5: Solve for x
    x = 3,138,019.13/1,915.03
  6. Step 6: Final answer
    x = 1,638.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.