Home / 3,788.36-5,675.10-2,139.88

Finding the Fourth Proportional to 3,788.36, 5,675.10 and 2,139.88

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Solution

The fourth proportional to 3,788.36, 5,675.10 and 2,139.88 is: 3,205.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.36 : 5,675.10 = 2,139.88 : x
  2. Step 2: Convert to fraction form
    3,788.36/5,675.10 = 2,139.88/x
  3. Step 3: Cross multiply
    3,788.36x = 5,675.10 × 2,139.88
  4. Step 4: Simplify right side
    3,788.36x = 12,144,032.99
  5. Step 5: Solve for x
    x = 12,144,032.99/3,788.36
  6. Step 6: Final answer
    x = 3,205.62

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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.