Home / 2,133.84-3,200.75-747.22

Finding the Fourth Proportional to 2,133.84, 3,200.75 and 747.22

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Solution

The fourth proportional to 2,133.84, 3,200.75 and 747.22 is: 1,120.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.84 : 3,200.75 = 747.22 : x
  2. Step 2: Convert to fraction form
    2,133.84/3,200.75 = 747.22/x
  3. Step 3: Cross multiply
    2,133.84x = 3,200.75 × 747.22
  4. Step 4: Simplify right side
    2,133.84x = 2,391,664.42
  5. Step 5: Solve for x
    x = 2,391,664.42/2,133.84
  6. Step 6: Final answer
    x = 1,120.83

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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.