Home / 1,730.38-2,387.92-984.31

Finding the Fourth Proportional to 1,730.38, 2,387.92 and 984.31

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Solution

The fourth proportional to 1,730.38, 2,387.92 and 984.31 is: 1,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.38 : 2,387.92 = 984.31 : x
  2. Step 2: Convert to fraction form
    1,730.38/2,387.92 = 984.31/x
  3. Step 3: Cross multiply
    1,730.38x = 2,387.92 × 984.31
  4. Step 4: Simplify right side
    1,730.38x = 2,350,453.54
  5. Step 5: Solve for x
    x = 2,350,453.54/1,730.38
  6. Step 6: Final answer
    x = 1,358.35

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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.