Home / 6,863.61-9,470.54-3,838.78

Finding the Fourth Proportional to 6,863.61, 9,470.54 and 3,838.78

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Solution

The fourth proportional to 6,863.61, 9,470.54 and 3,838.78 is: 5,296.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,863.61 : 9,470.54 = 3,838.78 : x
  2. Step 2: Convert to fraction form
    6,863.61/9,470.54 = 3,838.78/x
  3. Step 3: Cross multiply
    6,863.61x = 9,470.54 × 3,838.78
  4. Step 4: Simplify right side
    6,863.61x = 36,355,346.02
  5. Step 5: Solve for x
    x = 36,355,346.02/6,863.61
  6. Step 6: Final answer
    x = 5,296.83

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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.