Home / 3,759.36-5,188.32-2,188.32

Finding the Fourth Proportional to 3,759.36, 5,188.32 and 2,188.32

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Solution

The fourth proportional to 3,759.36, 5,188.32 and 2,188.32 is: 3,020.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.36 : 5,188.32 = 2,188.32 : x
  2. Step 2: Convert to fraction form
    3,759.36/5,188.32 = 2,188.32/x
  3. Step 3: Cross multiply
    3,759.36x = 5,188.32 × 2,188.32
  4. Step 4: Simplify right side
    3,759.36x = 11,353,704.42
  5. Step 5: Solve for x
    x = 11,353,704.42/3,759.36
  6. Step 6: Final answer
    x = 3,020.12

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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.