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Finding the Fourth Proportional to 2,133.69, 3,200.94 and 835.13

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Solution

The fourth proportional to 2,133.69, 3,200.94 and 835.13 is: 1,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.69 : 3,200.94 = 835.13 : x
  2. Step 2: Convert to fraction form
    2,133.69/3,200.94 = 835.13/x
  3. Step 3: Cross multiply
    2,133.69x = 3,200.94 × 835.13
  4. Step 4: Simplify right side
    2,133.69x = 2,673,185.02
  5. Step 5: Solve for x
    x = 2,673,185.02/2,133.69
  6. Step 6: Final answer
    x = 1,252.85

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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.