Home / 2,486.43-3,724.14-1,388.07

Finding the Fourth Proportional to 2,486.43, 3,724.14 and 1,388.07

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Solution

The fourth proportional to 2,486.43, 3,724.14 and 1,388.07 is: 2,079.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.43 : 3,724.14 = 1,388.07 : x
  2. Step 2: Convert to fraction form
    2,486.43/3,724.14 = 1,388.07/x
  3. Step 3: Cross multiply
    2,486.43x = 3,724.14 × 1,388.07
  4. Step 4: Simplify right side
    2,486.43x = 5,169,367.01
  5. Step 5: Solve for x
    x = 5,169,367.01/2,486.43
  6. Step 6: Final answer
    x = 2,079.03

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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.