Home / 3,417.40-5,121.99-1,442.26

Finding the Fourth Proportional to 3,417.40, 5,121.99 and 1,442.26

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Solution

The fourth proportional to 3,417.40, 5,121.99 and 1,442.26 is: 2,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.40 : 5,121.99 = 1,442.26 : x
  2. Step 2: Convert to fraction form
    3,417.40/5,121.99 = 1,442.26/x
  3. Step 3: Cross multiply
    3,417.40x = 5,121.99 × 1,442.26
  4. Step 4: Simplify right side
    3,417.40x = 7,387,241.30
  5. Step 5: Solve for x
    x = 7,387,241.30/3,417.40
  6. Step 6: Final answer
    x = 2,161.66

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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.