Home / 3,831.40-5,744.37-1,854.90

Finding the Fourth Proportional to 3,831.40, 5,744.37 and 1,854.90

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Solution

The fourth proportional to 3,831.40, 5,744.37 and 1,854.90 is: 2,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.40 : 5,744.37 = 1,854.90 : x
  2. Step 2: Convert to fraction form
    3,831.40/5,744.37 = 1,854.90/x
  3. Step 3: Cross multiply
    3,831.40x = 5,744.37 × 1,854.90
  4. Step 4: Simplify right side
    3,831.40x = 10,655,228.44
  5. Step 5: Solve for x
    x = 10,655,228.44/3,831.40
  6. Step 6: Final answer
    x = 2,781.03

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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.