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Finding the Fourth Proportional to 2,253.57, 3,378.53 and 793.75

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Solution

The fourth proportional to 2,253.57, 3,378.53 and 793.75 is: 1,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.57 : 3,378.53 = 793.75 : x
  2. Step 2: Convert to fraction form
    2,253.57/3,378.53 = 793.75/x
  3. Step 3: Cross multiply
    2,253.57x = 3,378.53 × 793.75
  4. Step 4: Simplify right side
    2,253.57x = 2,681,687.33
  5. Step 5: Solve for x
    x = 2,681,687.33/2,253.57
  6. Step 6: Final answer
    x = 1,189.98

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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.