Home / 3,219.39-4,442.49-2,984.31

Finding the Fourth Proportional to 3,219.39, 4,442.49 and 2,984.31

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Solution

The fourth proportional to 3,219.39, 4,442.49 and 2,984.31 is: 4,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.39 : 4,442.49 = 2,984.31 : x
  2. Step 2: Convert to fraction form
    3,219.39/4,442.49 = 2,984.31/x
  3. Step 3: Cross multiply
    3,219.39x = 4,442.49 × 2,984.31
  4. Step 4: Simplify right side
    3,219.39x = 13,257,767.33
  5. Step 5: Solve for x
    x = 13,257,767.33/3,219.39
  6. Step 6: Final answer
    x = 4,118.10

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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.