Home / 3,894.42-5,842.40-1,429.26

Finding the Fourth Proportional to 3,894.42, 5,842.40 and 1,429.26

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Solution

The fourth proportional to 3,894.42, 5,842.40 and 1,429.26 is: 2,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.42 : 5,842.40 = 1,429.26 : x
  2. Step 2: Convert to fraction form
    3,894.42/5,842.40 = 1,429.26/x
  3. Step 3: Cross multiply
    3,894.42x = 5,842.40 × 1,429.26
  4. Step 4: Simplify right side
    3,894.42x = 8,350,308.62
  5. Step 5: Solve for x
    x = 8,350,308.62/3,894.42
  6. Step 6: Final answer
    x = 2,144.17

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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.