Home / 5,398.71-7,450.15-3,161.75

Finding the Fourth Proportional to 5,398.71, 7,450.15 and 3,161.75

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Solution

The fourth proportional to 5,398.71, 7,450.15 and 3,161.75 is: 4,363.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398.71 : 7,450.15 = 3,161.75 : x
  2. Step 2: Convert to fraction form
    5,398.71/7,450.15 = 3,161.75/x
  3. Step 3: Cross multiply
    5,398.71x = 7,450.15 × 3,161.75
  4. Step 4: Simplify right side
    5,398.71x = 23,555,493.14
  5. Step 5: Solve for x
    x = 23,555,493.14/5,398.71
  6. Step 6: Final answer
    x = 4,363.17

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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.