Home / 3,889.35-5,833.98-1,424.12

Finding the Fourth Proportional to 3,889.35, 5,833.98 and 1,424.12

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Solution

The fourth proportional to 3,889.35, 5,833.98 and 1,424.12 is: 2,136.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.35 : 5,833.98 = 1,424.12 : x
  2. Step 2: Convert to fraction form
    3,889.35/5,833.98 = 1,424.12/x
  3. Step 3: Cross multiply
    3,889.35x = 5,833.98 × 1,424.12
  4. Step 4: Simplify right side
    3,889.35x = 8,308,258.43
  5. Step 5: Solve for x
    x = 8,308,258.43/3,889.35
  6. Step 6: Final answer
    x = 2,136.16

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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.