Home / 2,306.86-3,183.78-1,312.54

Finding the Fourth Proportional to 2,306.86, 3,183.78 and 1,312.54

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Solution

The fourth proportional to 2,306.86, 3,183.78 and 1,312.54 is: 1,811.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.86 : 3,183.78 = 1,312.54 : x
  2. Step 2: Convert to fraction form
    2,306.86/3,183.78 = 1,312.54/x
  3. Step 3: Cross multiply
    2,306.86x = 3,183.78 × 1,312.54
  4. Step 4: Simplify right side
    2,306.86x = 4,178,838.60
  5. Step 5: Solve for x
    x = 4,178,838.60/2,306.86
  6. Step 6: Final answer
    x = 1,811.48

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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.