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Finding the Fourth Proportional to 2,933.70, 4,400.68 and 742.44

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Solution

The fourth proportional to 2,933.70, 4,400.68 and 742.44 is: 1,113.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,933.70 : 4,400.68 = 742.44 : x
  2. Step 2: Convert to fraction form
    2,933.70/4,400.68 = 742.44/x
  3. Step 3: Cross multiply
    2,933.70x = 4,400.68 × 742.44
  4. Step 4: Simplify right side
    2,933.70x = 3,267,240.86
  5. Step 5: Solve for x
    x = 3,267,240.86/2,933.70
  6. Step 6: Final answer
    x = 1,113.69

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1.5x scale

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.