Home / 3,144.78-4,339.32-1,885.56

Finding the Fourth Proportional to 3,144.78, 4,339.32 and 1,885.56

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Solution

The fourth proportional to 3,144.78, 4,339.32 and 1,885.56 is: 2,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.78 : 4,339.32 = 1,885.56 : x
  2. Step 2: Convert to fraction form
    3,144.78/4,339.32 = 1,885.56/x
  3. Step 3: Cross multiply
    3,144.78x = 4,339.32 × 1,885.56
  4. Step 4: Simplify right side
    3,144.78x = 8,182,048.22
  5. Step 5: Solve for x
    x = 8,182,048.22/3,144.78
  6. Step 6: Final answer
    x = 2,601.79

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1.5x scale

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.