Home / 6,815.44-9,405.60-3,831.22

Finding the Fourth Proportional to 6,815.44, 9,405.60 and 3,831.22

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Solution

The fourth proportional to 6,815.44, 9,405.60 and 3,831.22 is: 5,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.44 : 9,405.60 = 3,831.22 : x
  2. Step 2: Convert to fraction form
    6,815.44/9,405.60 = 3,831.22/x
  3. Step 3: Cross multiply
    6,815.44x = 9,405.60 × 3,831.22
  4. Step 4: Simplify right side
    6,815.44x = 36,034,922.83
  5. Step 5: Solve for x
    x = 36,034,922.83/6,815.44
  6. Step 6: Final answer
    x = 5,287.25

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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.