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Finding the Fourth Proportional to 2,110.80, 3,166.88 and 650.24

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Solution

The fourth proportional to 2,110.80, 3,166.88 and 650.24 is: 975.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.80 : 3,166.88 = 650.24 : x
  2. Step 2: Convert to fraction form
    2,110.80/3,166.88 = 650.24/x
  3. Step 3: Cross multiply
    2,110.80x = 3,166.88 × 650.24
  4. Step 4: Simplify right side
    2,110.80x = 2,059,232.05
  5. Step 5: Solve for x
    x = 2,059,232.05/2,110.80
  6. Step 6: Final answer
    x = 975.57

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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.