Home / 6,626.28-9,143.62-3,831.72

Finding the Fourth Proportional to 6,626.28, 9,143.62 and 3,831.72

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Solution

The fourth proportional to 6,626.28, 9,143.62 and 3,831.72 is: 5,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.28 : 9,143.62 = 3,831.72 : x
  2. Step 2: Convert to fraction form
    6,626.28/9,143.62 = 3,831.72/x
  3. Step 3: Cross multiply
    6,626.28x = 9,143.62 × 3,831.72
  4. Step 4: Simplify right side
    6,626.28x = 35,035,791.63
  5. Step 5: Solve for x
    x = 35,035,791.63/6,626.28
  6. Step 6: Final answer
    x = 5,287.40

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Similar ratio
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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.