Home / 4,138.75-6,208.13-3,931.12

Finding the Fourth Proportional to 4,138.75, 6,208.13 and 3,931.12

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Solution

The fourth proportional to 4,138.75, 6,208.13 and 3,931.12 is: 5,896.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.75 : 6,208.13 = 3,931.12 : x
  2. Step 2: Convert to fraction form
    4,138.75/6,208.13 = 3,931.12/x
  3. Step 3: Cross multiply
    4,138.75x = 6,208.13 × 3,931.12
  4. Step 4: Simplify right side
    4,138.75x = 24,404,904.01
  5. Step 5: Solve for x
    x = 24,404,904.01/4,138.75
  6. Step 6: Final answer
    x = 5,896.68

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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.