Home / 2,318.20-3,479.32-1,223.36

Finding the Fourth Proportional to 2,318.20, 3,479.32 and 1,223.36

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Solution

The fourth proportional to 2,318.20, 3,479.32 and 1,223.36 is: 1,836.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.20 : 3,479.32 = 1,223.36 : x
  2. Step 2: Convert to fraction form
    2,318.20/3,479.32 = 1,223.36/x
  3. Step 3: Cross multiply
    2,318.20x = 3,479.32 × 1,223.36
  4. Step 4: Simplify right side
    2,318.20x = 4,256,460.92
  5. Step 5: Solve for x
    x = 4,256,460.92/2,318.20
  6. Step 6: Final answer
    x = 1,836.11

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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.