Home / 3,188.70-4,787.19-2,458.80

Finding the Fourth Proportional to 3,188.70, 4,787.19 and 2,458.80

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Solution

The fourth proportional to 3,188.70, 4,787.19 and 2,458.80 is: 3,691.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.70 : 4,787.19 = 2,458.80 : x
  2. Step 2: Convert to fraction form
    3,188.70/4,787.19 = 2,458.80/x
  3. Step 3: Cross multiply
    3,188.70x = 4,787.19 × 2,458.80
  4. Step 4: Simplify right side
    3,188.70x = 11,770,742.77
  5. Step 5: Solve for x
    x = 11,770,742.77/3,188.70
  6. Step 6: Final answer
    x = 3,691.39

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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.