Home / 7,392.20-11,079.30-3,223.40

Finding the Fourth Proportional to 7,392.20, 11,079.30 and 3,223.40

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Solution

The fourth proportional to 7,392.20, 11,079.30 and 3,223.40 is: 4,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.20 : 11,079.30 = 3,223.40 : x
  2. Step 2: Convert to fraction form
    7,392.20/11,079.30 = 3,223.40/x
  3. Step 3: Cross multiply
    7,392.20x = 11,079.30 × 3,223.40
  4. Step 4: Simplify right side
    7,392.20x = 35,713,015.62
  5. Step 5: Solve for x
    x = 35,713,015.62/7,392.20
  6. Step 6: Final answer
    x = 4,831.18

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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.