Home / 3,831.61-5,287.47-2,342.02

Finding the Fourth Proportional to 3,831.61, 5,287.47 and 2,342.02

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Solution

The fourth proportional to 3,831.61, 5,287.47 and 2,342.02 is: 3,231.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.61 : 5,287.47 = 2,342.02 : x
  2. Step 2: Convert to fraction form
    3,831.61/5,287.47 = 2,342.02/x
  3. Step 3: Cross multiply
    3,831.61x = 5,287.47 × 2,342.02
  4. Step 4: Simplify right side
    3,831.61x = 12,383,360.49
  5. Step 5: Solve for x
    x = 12,383,360.49/3,831.61
  6. Step 6: Final answer
    x = 3,231.89

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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.