Home / 5,191.08-7,788.60-1,906.44

Finding the Fourth Proportional to 5,191.08, 7,788.60 and 1,906.44

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Solution

The fourth proportional to 5,191.08, 7,788.60 and 1,906.44 is: 2,860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.08 : 7,788.60 = 1,906.44 : x
  2. Step 2: Convert to fraction form
    5,191.08/7,788.60 = 1,906.44/x
  3. Step 3: Cross multiply
    5,191.08x = 7,788.60 × 1,906.44
  4. Step 4: Simplify right side
    5,191.08x = 14,848,498.58
  5. Step 5: Solve for x
    x = 14,848,498.58/5,191.08
  6. Step 6: Final answer
    x = 2,860.39

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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.