Home / 3,190.82-4,788.08-1,341.78

Finding the Fourth Proportional to 3,190.82, 4,788.08 and 1,341.78

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Solution

The fourth proportional to 3,190.82, 4,788.08 and 1,341.78 is: 2,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.82 : 4,788.08 = 1,341.78 : x
  2. Step 2: Convert to fraction form
    3,190.82/4,788.08 = 1,341.78/x
  3. Step 3: Cross multiply
    3,190.82x = 4,788.08 × 1,341.78
  4. Step 4: Simplify right side
    3,190.82x = 6,424,549.98
  5. Step 5: Solve for x
    x = 6,424,549.98/3,190.82
  6. Step 6: Final answer
    x = 2,013.45

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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.