Home / 3,369.11-5,052.45-1,420.25

Finding the Fourth Proportional to 3,369.11, 5,052.45 and 1,420.25

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Solution

The fourth proportional to 3,369.11, 5,052.45 and 1,420.25 is: 2,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.11 : 5,052.45 = 1,420.25 : x
  2. Step 2: Convert to fraction form
    3,369.11/5,052.45 = 1,420.25/x
  3. Step 3: Cross multiply
    3,369.11x = 5,052.45 × 1,420.25
  4. Step 4: Simplify right side
    3,369.11x = 7,175,742.11
  5. Step 5: Solve for x
    x = 7,175,742.11/3,369.11
  6. Step 6: Final answer
    x = 2,129.86

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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.