Home / 2,929.38-4,391.03-1,831.22

Finding the Fourth Proportional to 2,929.38, 4,391.03 and 1,831.22

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Solution

The fourth proportional to 2,929.38, 4,391.03 and 1,831.22 is: 2,744.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.38 : 4,391.03 = 1,831.22 : x
  2. Step 2: Convert to fraction form
    2,929.38/4,391.03 = 1,831.22/x
  3. Step 3: Cross multiply
    2,929.38x = 4,391.03 × 1,831.22
  4. Step 4: Simplify right side
    2,929.38x = 8,040,957.51
  5. Step 5: Solve for x
    x = 8,040,957.51/2,929.38
  6. Step 6: Final answer
    x = 2,744.93

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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.