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Finding the Fourth Proportional to 2,166.94, 3,250.35 and 868.36

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Solution

The fourth proportional to 2,166.94, 3,250.35 and 868.36 is: 1,302.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.94 : 3,250.35 = 868.36 : x
  2. Step 2: Convert to fraction form
    2,166.94/3,250.35 = 868.36/x
  3. Step 3: Cross multiply
    2,166.94x = 3,250.35 × 868.36
  4. Step 4: Simplify right side
    2,166.94x = 2,822,473.93
  5. Step 5: Solve for x
    x = 2,822,473.93/2,166.94
  6. Step 6: Final answer
    x = 1,302.52

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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.