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Finding the Fourth Proportional to 1,969.92, 2,968.69 and 1,775.14

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Solution

The fourth proportional to 1,969.92, 2,968.69 and 1,775.14 is: 2,675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.92 : 2,968.69 = 1,775.14 : x
  2. Step 2: Convert to fraction form
    1,969.92/2,968.69 = 1,775.14/x
  3. Step 3: Cross multiply
    1,969.92x = 2,968.69 × 1,775.14
  4. Step 4: Simplify right side
    1,969.92x = 5,269,840.37
  5. Step 5: Solve for x
    x = 5,269,840.37/1,969.92
  6. Step 6: Final answer
    x = 2,675.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.