Home / 6,975.78-9,626.64-3,831.96

Finding the Fourth Proportional to 6,975.78, 9,626.64 and 3,831.96

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Solution

The fourth proportional to 6,975.78, 9,626.64 and 3,831.96 is: 5,288.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,975.78 : 9,626.64 = 3,831.96 : x
  2. Step 2: Convert to fraction form
    6,975.78/9,626.64 = 3,831.96/x
  3. Step 3: Cross multiply
    6,975.78x = 9,626.64 × 3,831.96
  4. Step 4: Simplify right side
    6,975.78x = 36,888,880.25
  5. Step 5: Solve for x
    x = 36,888,880.25/6,975.78
  6. Step 6: Final answer
    x = 5,288.14

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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.