Home / 3,924.61-5,415.88-2,132.04

Finding the Fourth Proportional to 3,924.61, 5,415.88 and 2,132.04

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Solution

The fourth proportional to 3,924.61, 5,415.88 and 2,132.04 is: 2,942.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.61 : 5,415.88 = 2,132.04 : x
  2. Step 2: Convert to fraction form
    3,924.61/5,415.88 = 2,132.04/x
  3. Step 3: Cross multiply
    3,924.61x = 5,415.88 × 2,132.04
  4. Step 4: Simplify right side
    3,924.61x = 11,546,875.16
  5. Step 5: Solve for x
    x = 11,546,875.16/3,924.61
  6. Step 6: Final answer
    x = 2,942.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.