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Finding the Fourth Proportional to 2,110.14, 3,166.62 and 742.14

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Solution

The fourth proportional to 2,110.14, 3,166.62 and 742.14 is: 1,113.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.14 : 3,166.62 = 742.14 : x
  2. Step 2: Convert to fraction form
    2,110.14/3,166.62 = 742.14/x
  3. Step 3: Cross multiply
    2,110.14x = 3,166.62 × 742.14
  4. Step 4: Simplify right side
    2,110.14x = 2,350,075.37
  5. Step 5: Solve for x
    x = 2,350,075.37/2,110.14
  6. Step 6: Final answer
    x = 1,113.71

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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.