Home / 2,148.51-3,223.97-1,161.31

Finding the Fourth Proportional to 2,148.51, 3,223.97 and 1,161.31

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Solution

The fourth proportional to 2,148.51, 3,223.97 and 1,161.31 is: 1,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.51 : 3,223.97 = 1,161.31 : x
  2. Step 2: Convert to fraction form
    2,148.51/3,223.97 = 1,161.31/x
  3. Step 3: Cross multiply
    2,148.51x = 3,223.97 × 1,161.31
  4. Step 4: Simplify right side
    2,148.51x = 3,744,028.60
  5. Step 5: Solve for x
    x = 3,744,028.60/2,148.51
  6. Step 6: Final answer
    x = 1,742.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.