Home / 3,443.78-5,188.61-3,115.08

Finding the Fourth Proportional to 3,443.78, 5,188.61 and 3,115.08

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Solution

The fourth proportional to 3,443.78, 5,188.61 and 3,115.08 is: 4,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,443.78 : 5,188.61 = 3,115.08 : x
  2. Step 2: Convert to fraction form
    3,443.78/5,188.61 = 3,115.08/x
  3. Step 3: Cross multiply
    3,443.78x = 5,188.61 × 3,115.08
  4. Step 4: Simplify right side
    3,443.78x = 16,162,919.66
  5. Step 5: Solve for x
    x = 16,162,919.66/3,443.78
  6. Step 6: Final answer
    x = 4,693.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.