Home / 1,301.09-1,940.78-1,177.97

Finding the Fourth Proportional to 1,301.09, 1,940.78 and 1,177.97

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Solution

The fourth proportional to 1,301.09, 1,940.78 and 1,177.97 is: 1,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.09 : 1,940.78 = 1,177.97 : x
  2. Step 2: Convert to fraction form
    1,301.09/1,940.78 = 1,177.97/x
  3. Step 3: Cross multiply
    1,301.09x = 1,940.78 × 1,177.97
  4. Step 4: Simplify right side
    1,301.09x = 2,286,173.86
  5. Step 5: Solve for x
    x = 2,286,173.86/1,301.09
  6. Step 6: Final answer
    x = 1,757.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.