Home / 3,213.39-4,434.06-1,868.64

Finding the Fourth Proportional to 3,213.39, 4,434.06 and 1,868.64

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Solution

The fourth proportional to 3,213.39, 4,434.06 and 1,868.64 is: 2,578.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.39 : 4,434.06 = 1,868.64 : x
  2. Step 2: Convert to fraction form
    3,213.39/4,434.06 = 1,868.64/x
  3. Step 3: Cross multiply
    3,213.39x = 4,434.06 × 1,868.64
  4. Step 4: Simplify right side
    3,213.39x = 8,285,641.75
  5. Step 5: Solve for x
    x = 8,285,641.75/3,213.39
  6. Step 6: Final answer
    x = 2,578.48

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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.