Home / 3,196.30-4,788.36-1,876.81

Finding the Fourth Proportional to 3,196.30, 4,788.36 and 1,876.81

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Solution

The fourth proportional to 3,196.30, 4,788.36 and 1,876.81 is: 2,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,196.30 : 4,788.36 = 1,876.81 : x
  2. Step 2: Convert to fraction form
    3,196.30/4,788.36 = 1,876.81/x
  3. Step 3: Cross multiply
    3,196.30x = 4,788.36 × 1,876.81
  4. Step 4: Simplify right side
    3,196.30x = 8,986,841.93
  5. Step 5: Solve for x
    x = 8,986,841.93/3,196.30
  6. Step 6: Final answer
    x = 2,811.64

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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.