Home / 3,216.26-4,440.51-2,879.57

Finding the Fourth Proportional to 3,216.26, 4,440.51 and 2,879.57

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Solution

The fourth proportional to 3,216.26, 4,440.51 and 2,879.57 is: 3,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.26 : 4,440.51 = 2,879.57 : x
  2. Step 2: Convert to fraction form
    3,216.26/4,440.51 = 2,879.57/x
  3. Step 3: Cross multiply
    3,216.26x = 4,440.51 × 2,879.57
  4. Step 4: Simplify right side
    3,216.26x = 12,786,737.18
  5. Step 5: Solve for x
    x = 12,786,737.18/3,216.26
  6. Step 6: Final answer
    x = 3,975.66

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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.