Home / 5,190.30-7,788.29-2,418.28

Finding the Fourth Proportional to 5,190.30, 7,788.29 and 2,418.28

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Solution

The fourth proportional to 5,190.30, 7,788.29 and 2,418.28 is: 3,628.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.30 : 7,788.29 = 2,418.28 : x
  2. Step 2: Convert to fraction form
    5,190.30/7,788.29 = 2,418.28/x
  3. Step 3: Cross multiply
    5,190.30x = 7,788.29 × 2,418.28
  4. Step 4: Simplify right side
    5,190.30x = 18,834,234.38
  5. Step 5: Solve for x
    x = 18,834,234.38/5,190.30
  6. Step 6: Final answer
    x = 3,628.74

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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.