Home / 2,831.10-3,906.30-1,712.02

Finding the Fourth Proportional to 2,831.10, 3,906.30 and 1,712.02

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Solution

The fourth proportional to 2,831.10, 3,906.30 and 1,712.02 is: 2,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.10 : 3,906.30 = 1,712.02 : x
  2. Step 2: Convert to fraction form
    2,831.10/3,906.30 = 1,712.02/x
  3. Step 3: Cross multiply
    2,831.10x = 3,906.30 × 1,712.02
  4. Step 4: Simplify right side
    2,831.10x = 6,687,663.73
  5. Step 5: Solve for x
    x = 6,687,663.73/2,831.10
  6. Step 6: Final answer
    x = 2,362.21

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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.