Home / 5,205.35-7,180.97-3,188.15

Finding the Fourth Proportional to 5,205.35, 7,180.97 and 3,188.15

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Solution

The fourth proportional to 5,205.35, 7,180.97 and 3,188.15 is: 4,398.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.35 : 7,180.97 = 3,188.15 : x
  2. Step 2: Convert to fraction form
    5,205.35/7,180.97 = 3,188.15/x
  3. Step 3: Cross multiply
    5,205.35x = 7,180.97 × 3,188.15
  4. Step 4: Simplify right side
    5,205.35x = 22,893,981.57
  5. Step 5: Solve for x
    x = 22,893,981.57/5,205.35
  6. Step 6: Final answer
    x = 4,398.17

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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.