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Finding the Fourth Proportional to 3,909.44, 5,394.80 and 2,337.44

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Solution

The fourth proportional to 3,909.44, 5,394.80 and 2,337.44 is: 3,225.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.44 : 5,394.80 = 2,337.44 : x
  2. Step 2: Convert to fraction form
    3,909.44/5,394.80 = 2,337.44/x
  3. Step 3: Cross multiply
    3,909.44x = 5,394.80 × 2,337.44
  4. Step 4: Simplify right side
    3,909.44x = 12,610,021.31
  5. Step 5: Solve for x
    x = 12,610,021.31/3,909.44
  6. Step 6: Final answer
    x = 3,225.53

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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.