Home / 6,121.62-9,180.96-2,831.55

Finding the Fourth Proportional to 6,121.62, 9,180.96 and 2,831.55

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Solution

The fourth proportional to 6,121.62, 9,180.96 and 2,831.55 is: 4,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.62 : 9,180.96 = 2,831.55 : x
  2. Step 2: Convert to fraction form
    6,121.62/9,180.96 = 2,831.55/x
  3. Step 3: Cross multiply
    6,121.62x = 9,180.96 × 2,831.55
  4. Step 4: Simplify right side
    6,121.62x = 25,996,347.29
  5. Step 5: Solve for x
    x = 25,996,347.29/6,121.62
  6. Step 6: Final answer
    x = 4,246.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.