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Finding the Fourth Proportional to 4,915.17, 7,368.03 and 3,155.25

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Solution

The fourth proportional to 4,915.17, 7,368.03 and 3,155.25 is: 4,729.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.17 : 7,368.03 = 3,155.25 : x
  2. Step 2: Convert to fraction form
    4,915.17/7,368.03 = 3,155.25/x
  3. Step 3: Cross multiply
    4,915.17x = 7,368.03 × 3,155.25
  4. Step 4: Simplify right side
    4,915.17x = 23,247,976.66
  5. Step 5: Solve for x
    x = 23,247,976.66/4,915.17
  6. Step 6: Final answer
    x = 4,729.84

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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.