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Finding the Fourth Proportional to 2,133.72, 3,200.74 and 963.45

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Solution

The fourth proportional to 2,133.72, 3,200.74 and 963.45 is: 1,445.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.72 : 3,200.74 = 963.45 : x
  2. Step 2: Convert to fraction form
    2,133.72/3,200.74 = 963.45/x
  3. Step 3: Cross multiply
    2,133.72x = 3,200.74 × 963.45
  4. Step 4: Simplify right side
    2,133.72x = 3,083,750.54
  5. Step 5: Solve for x
    x = 3,083,750.54/2,133.72
  6. Step 6: Final answer
    x = 1,445.25

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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.