Home / 4,164.78-6,246.59-1,391.39

Finding the Fourth Proportional to 4,164.78, 6,246.59 and 1,391.39

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Solution

The fourth proportional to 4,164.78, 6,246.59 and 1,391.39 is: 2,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,164.78 : 6,246.59 = 1,391.39 : x
  2. Step 2: Convert to fraction form
    4,164.78/6,246.59 = 1,391.39/x
  3. Step 3: Cross multiply
    4,164.78x = 6,246.59 × 1,391.39
  4. Step 4: Simplify right side
    4,164.78x = 8,691,442.86
  5. Step 5: Solve for x
    x = 8,691,442.86/4,164.78
  6. Step 6: Final answer
    x = 2,086.89

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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.