Home / 3,927.03-5,419.63-2,158.97

Finding the Fourth Proportional to 3,927.03, 5,419.63 and 2,158.97

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Solution

The fourth proportional to 3,927.03, 5,419.63 and 2,158.97 is: 2,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.03 : 5,419.63 = 2,158.97 : x
  2. Step 2: Convert to fraction form
    3,927.03/5,419.63 = 2,158.97/x
  3. Step 3: Cross multiply
    3,927.03x = 5,419.63 × 2,158.97
  4. Step 4: Simplify right side
    3,927.03x = 11,700,782.04
  5. Step 5: Solve for x
    x = 11,700,782.04/3,927.03
  6. Step 6: Final answer
    x = 2,979.55

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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.