Home / 3,118.68-4,308.21-2,493.36

Finding the Fourth Proportional to 3,118.68, 4,308.21 and 2,493.36

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Solution

The fourth proportional to 3,118.68, 4,308.21 and 2,493.36 is: 3,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.68 : 4,308.21 = 2,493.36 : x
  2. Step 2: Convert to fraction form
    3,118.68/4,308.21 = 2,493.36/x
  3. Step 3: Cross multiply
    3,118.68x = 4,308.21 × 2,493.36
  4. Step 4: Simplify right side
    3,118.68x = 10,741,918.49
  5. Step 5: Solve for x
    x = 10,741,918.49/3,118.68
  6. Step 6: Final answer
    x = 3,444.38

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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.