Home / 3,759.30-5,188.88-2,187.70

Finding the Fourth Proportional to 3,759.30, 5,188.88 and 2,187.70

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Solution

The fourth proportional to 3,759.30, 5,188.88 and 2,187.70 is: 3,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.30 : 5,188.88 = 2,187.70 : x
  2. Step 2: Convert to fraction form
    3,759.30/5,188.88 = 2,187.70/x
  3. Step 3: Cross multiply
    3,759.30x = 5,188.88 × 2,187.70
  4. Step 4: Simplify right side
    3,759.30x = 11,351,712.78
  5. Step 5: Solve for x
    x = 11,351,712.78/3,759.30
  6. Step 6: Final answer
    x = 3,019.63

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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.