Home / 3,398.21-5,098.26-1,938.39

Finding the Fourth Proportional to 3,398.21, 5,098.26 and 1,938.39

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Solution

The fourth proportional to 3,398.21, 5,098.26 and 1,938.39 is: 2,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.21 : 5,098.26 = 1,938.39 : x
  2. Step 2: Convert to fraction form
    3,398.21/5,098.26 = 1,938.39/x
  3. Step 3: Cross multiply
    3,398.21x = 5,098.26 × 1,938.39
  4. Step 4: Simplify right side
    3,398.21x = 9,882,416.20
  5. Step 5: Solve for x
    x = 9,882,416.20/3,398.21
  6. Step 6: Final answer
    x = 2,908.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.