Home / 1,308.38-1,969.70-1,193.56

Finding the Fourth Proportional to 1,308.38, 1,969.70 and 1,193.56

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Solution

The fourth proportional to 1,308.38, 1,969.70 and 1,193.56 is: 1,796.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308.38 : 1,969.70 = 1,193.56 : x
  2. Step 2: Convert to fraction form
    1,308.38/1,969.70 = 1,193.56/x
  3. Step 3: Cross multiply
    1,308.38x = 1,969.70 × 1,193.56
  4. Step 4: Simplify right side
    1,308.38x = 2,350,955.13
  5. Step 5: Solve for x
    x = 2,350,955.13/1,308.38
  6. Step 6: Final answer
    x = 1,796.84

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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.