Home / 1,291.15-1,944.96-1,179.07

Finding the Fourth Proportional to 1,291.15, 1,944.96 and 1,179.07

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Solution

The fourth proportional to 1,291.15, 1,944.96 and 1,179.07 is: 1,776.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291.15 : 1,944.96 = 1,179.07 : x
  2. Step 2: Convert to fraction form
    1,291.15/1,944.96 = 1,179.07/x
  3. Step 3: Cross multiply
    1,291.15x = 1,944.96 × 1,179.07
  4. Step 4: Simplify right side
    1,291.15x = 2,293,243.99
  5. Step 5: Solve for x
    x = 2,293,243.99/1,291.15
  6. Step 6: Final answer
    x = 1,776.13

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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.