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Finding the Fourth Proportional to 2,915.34, 4,353.13 and 2,750.88

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Solution

The fourth proportional to 2,915.34, 4,353.13 and 2,750.88 is: 4,107.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.34 : 4,353.13 = 2,750.88 : x
  2. Step 2: Convert to fraction form
    2,915.34/4,353.13 = 2,750.88/x
  3. Step 3: Cross multiply
    2,915.34x = 4,353.13 × 2,750.88
  4. Step 4: Simplify right side
    2,915.34x = 11,974,938.25
  5. Step 5: Solve for x
    x = 11,974,938.25/2,915.34
  6. Step 6: Final answer
    x = 4,107.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.