Home / 3,351.81-5,029.41-1,378.89

Finding the Fourth Proportional to 3,351.81, 5,029.41 and 1,378.89

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Solution

The fourth proportional to 3,351.81, 5,029.41 and 1,378.89 is: 2,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.81 : 5,029.41 = 1,378.89 : x
  2. Step 2: Convert to fraction form
    3,351.81/5,029.41 = 1,378.89/x
  3. Step 3: Cross multiply
    3,351.81x = 5,029.41 × 1,378.89
  4. Step 4: Simplify right side
    3,351.81x = 6,935,003.15
  5. Step 5: Solve for x
    x = 6,935,003.15/3,351.81
  6. Step 6: Final answer
    x = 2,069.03

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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.