Home / 1,291.38-1,944.09-1,176.56

Finding the Fourth Proportional to 1,291.38, 1,944.09 and 1,176.56

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Solution

The fourth proportional to 1,291.38, 1,944.09 and 1,176.56 is: 1,771.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291.38 : 1,944.09 = 1,176.56 : x
  2. Step 2: Convert to fraction form
    1,291.38/1,944.09 = 1,176.56/x
  3. Step 3: Cross multiply
    1,291.38x = 1,944.09 × 1,176.56
  4. Step 4: Simplify right side
    1,291.38x = 2,287,333.67
  5. Step 5: Solve for x
    x = 2,287,333.67/1,291.38
  6. Step 6: Final answer
    x = 1,771.24

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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.