Home / 3,394.14-5,090.38-1,418.70

Finding the Fourth Proportional to 3,394.14, 5,090.38 and 1,418.70

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Solution

The fourth proportional to 3,394.14, 5,090.38 and 1,418.70 is: 2,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.14 : 5,090.38 = 1,418.70 : x
  2. Step 2: Convert to fraction form
    3,394.14/5,090.38 = 1,418.70/x
  3. Step 3: Cross multiply
    3,394.14x = 5,090.38 × 1,418.70
  4. Step 4: Simplify right side
    3,394.14x = 7,221,696.65
  5. Step 5: Solve for x
    x = 7,221,696.65/3,394.14
  6. Step 6: Final answer
    x = 2,127.70

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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.