Home / 1,791.31-2,470.37-1,161.18

Finding the Fourth Proportional to 1,791.31, 2,470.37 and 1,161.18

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Solution

The fourth proportional to 1,791.31, 2,470.37 and 1,161.18 is: 1,601.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.31 : 2,470.37 = 1,161.18 : x
  2. Step 2: Convert to fraction form
    1,791.31/2,470.37 = 1,161.18/x
  3. Step 3: Cross multiply
    1,791.31x = 2,470.37 × 1,161.18
  4. Step 4: Simplify right side
    1,791.31x = 2,868,547.14
  5. Step 5: Solve for x
    x = 2,868,547.14/1,791.31
  6. Step 6: Final answer
    x = 1,601.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.