Home / 3,831.93-5,287.88-2,238.61

Finding the Fourth Proportional to 3,831.93, 5,287.88 and 2,238.61

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Solution

The fourth proportional to 3,831.93, 5,287.88 and 2,238.61 is: 3,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.93 : 5,287.88 = 2,238.61 : x
  2. Step 2: Convert to fraction form
    3,831.93/5,287.88 = 2,238.61/x
  3. Step 3: Cross multiply
    3,831.93x = 5,287.88 × 2,238.61
  4. Step 4: Simplify right side
    3,831.93x = 11,837,493.42
  5. Step 5: Solve for x
    x = 11,837,493.42/3,831.93
  6. Step 6: Final answer
    x = 3,089.17

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1.5x scale

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.