Home / 2,323.38-3,208.66-1,989.87

Finding the Fourth Proportional to 2,323.38, 3,208.66 and 1,989.87

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Solution

The fourth proportional to 2,323.38, 3,208.66 and 1,989.87 is: 2,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,323.38 : 3,208.66 = 1,989.87 : x
  2. Step 2: Convert to fraction form
    2,323.38/3,208.66 = 1,989.87/x
  3. Step 3: Cross multiply
    2,323.38x = 3,208.66 × 1,989.87
  4. Step 4: Simplify right side
    2,323.38x = 6,384,810.46
  5. Step 5: Solve for x
    x = 6,384,810.46/2,323.38
  6. Step 6: Final answer
    x = 2,748.07

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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.