Home / 6,831.55-9,427.57-3,847.44

Finding the Fourth Proportional to 6,831.55, 9,427.57 and 3,847.44

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Solution

The fourth proportional to 6,831.55, 9,427.57 and 3,847.44 is: 5,309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,831.55 : 9,427.57 = 3,847.44 : x
  2. Step 2: Convert to fraction form
    6,831.55/9,427.57 = 3,847.44/x
  3. Step 3: Cross multiply
    6,831.55x = 9,427.57 × 3,847.44
  4. Step 4: Simplify right side
    6,831.55x = 36,272,004.27
  5. Step 5: Solve for x
    x = 36,272,004.27/6,831.55
  6. Step 6: Final answer
    x = 5,309.48

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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.