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Finding the Fourth Proportional to 2,915.76, 4,372.80 and 967.44

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Solution

The fourth proportional to 2,915.76, 4,372.80 and 967.44 is: 1,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.76 : 4,372.80 = 967.44 : x
  2. Step 2: Convert to fraction form
    2,915.76/4,372.80 = 967.44/x
  3. Step 3: Cross multiply
    2,915.76x = 4,372.80 × 967.44
  4. Step 4: Simplify right side
    2,915.76x = 4,230,421.63
  5. Step 5: Solve for x
    x = 4,230,421.63/2,915.76
  6. Step 6: Final answer
    x = 1,450.88

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