Home / 3,216.78-4,439.09-1,819.53

Finding the Fourth Proportional to 3,216.78, 4,439.09 and 1,819.53

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Solution

The fourth proportional to 3,216.78, 4,439.09 and 1,819.53 is: 2,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.78 : 4,439.09 = 1,819.53 : x
  2. Step 2: Convert to fraction form
    3,216.78/4,439.09 = 1,819.53/x
  3. Step 3: Cross multiply
    3,216.78x = 4,439.09 × 1,819.53
  4. Step 4: Simplify right side
    3,216.78x = 8,077,048.33
  5. Step 5: Solve for x
    x = 8,077,048.33/3,216.78
  6. Step 6: Final answer
    x = 2,510.91

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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.