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Finding the Fourth Proportional to 3,354.81, 4,630.31 and 1,938.73

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Solution

The fourth proportional to 3,354.81, 4,630.31 and 1,938.73 is: 2,675.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354.81 : 4,630.31 = 1,938.73 : x
  2. Step 2: Convert to fraction form
    3,354.81/4,630.31 = 1,938.73/x
  3. Step 3: Cross multiply
    3,354.81x = 4,630.31 × 1,938.73
  4. Step 4: Simplify right side
    3,354.81x = 8,976,920.91
  5. Step 5: Solve for x
    x = 8,976,920.91/3,354.81
  6. Step 6: Final answer
    x = 2,675.84

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1.5x scale

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.