Home / 2,193.90-3,027.31-1,309.51

Finding the Fourth Proportional to 2,193.90, 3,027.31 and 1,309.51

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Solution

The fourth proportional to 2,193.90, 3,027.31 and 1,309.51 is: 1,806.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.90 : 3,027.31 = 1,309.51 : x
  2. Step 2: Convert to fraction form
    2,193.90/3,027.31 = 1,309.51/x
  3. Step 3: Cross multiply
    2,193.90x = 3,027.31 × 1,309.51
  4. Step 4: Simplify right side
    2,193.90x = 3,964,292.72
  5. Step 5: Solve for x
    x = 3,964,292.72/2,193.90
  6. Step 6: Final answer
    x = 1,806.96

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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.