Home / 2,223.12-3,336-1,236.76

Finding the Fourth Proportional to 2,223.12, 3,336 and 1,236.76

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Solution

The fourth proportional to 2,223.12, 3,336 and 1,236.76 is: 1,855.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.12 : 3,336 = 1,236.76 : x
  2. Step 2: Convert to fraction form
    2,223.12/3,336 = 1,236.76/x
  3. Step 3: Cross multiply
    2,223.12x = 3,336 × 1,236.76
  4. Step 4: Simplify right side
    2,223.12x = 4,125,831.36
  5. Step 5: Solve for x
    x = 4,125,831.36/2,223.12
  6. Step 6: Final answer
    x = 1,855.87

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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.