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Finding the Fourth Proportional to 2,442.96, 3,371 and 1,394.72

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Solution

The fourth proportional to 2,442.96, 3,371 and 1,394.72 is: 1,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,442.96 : 3,371 = 1,394.72 : x
  2. Step 2: Convert to fraction form
    2,442.96/3,371 = 1,394.72/x
  3. Step 3: Cross multiply
    2,442.96x = 3,371 × 1,394.72
  4. Step 4: Simplify right side
    2,442.96x = 4,701,601.12
  5. Step 5: Solve for x
    x = 4,701,601.12/2,442.96
  6. Step 6: Final answer
    x = 1,924.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.