Home / 4,869.76-6,716.80-3,188.48

Finding the Fourth Proportional to 4,869.76, 6,716.80 and 3,188.48

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Solution

The fourth proportional to 4,869.76, 6,716.80 and 3,188.48 is: 4,397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.76 : 6,716.80 = 3,188.48 : x
  2. Step 2: Convert to fraction form
    4,869.76/6,716.80 = 3,188.48/x
  3. Step 3: Cross multiply
    4,869.76x = 6,716.80 × 3,188.48
  4. Step 4: Simplify right side
    4,869.76x = 21,416,382.46
  5. Step 5: Solve for x
    x = 21,416,382.46/4,869.76
  6. Step 6: Final answer
    x = 4,397.83

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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.