Home / 6,831.59-9,427.61-3,998.45

Finding the Fourth Proportional to 6,831.59, 9,427.61 and 3,998.45

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Solution

The fourth proportional to 6,831.59, 9,427.61 and 3,998.45 is: 5,517.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,831.59 : 9,427.61 = 3,998.45 : x
  2. Step 2: Convert to fraction form
    6,831.59/9,427.61 = 3,998.45/x
  3. Step 3: Cross multiply
    6,831.59x = 9,427.61 × 3,998.45
  4. Step 4: Simplify right side
    6,831.59x = 37,695,760.07
  5. Step 5: Solve for x
    x = 37,695,760.07/6,831.59
  6. Step 6: Final answer
    x = 5,517.86

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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.