Home / 3,831.91-5,749.35-1,492.12

Finding the Fourth Proportional to 3,831.91, 5,749.35 and 1,492.12

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Solution

The fourth proportional to 3,831.91, 5,749.35 and 1,492.12 is: 2,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.91 : 5,749.35 = 1,492.12 : x
  2. Step 2: Convert to fraction form
    3,831.91/5,749.35 = 1,492.12/x
  3. Step 3: Cross multiply
    3,831.91x = 5,749.35 × 1,492.12
  4. Step 4: Simplify right side
    3,831.91x = 8,578,721.71
  5. Step 5: Solve for x
    x = 8,578,721.71/3,831.91
  6. Step 6: Final answer
    x = 2,238.76

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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.