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Finding the Fourth Proportional to 2,772.47, 4,157.33 and 922.95

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Solution

The fourth proportional to 2,772.47, 4,157.33 and 922.95 is: 1,383.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.47 : 4,157.33 = 922.95 : x
  2. Step 2: Convert to fraction form
    2,772.47/4,157.33 = 922.95/x
  3. Step 3: Cross multiply
    2,772.47x = 4,157.33 × 922.95
  4. Step 4: Simplify right side
    2,772.47x = 3,837,003.11
  5. Step 5: Solve for x
    x = 3,837,003.11/2,772.47
  6. Step 6: Final answer
    x = 1,383.96

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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.