Home / 3,965.61-5,472.36-2,173.08

Finding the Fourth Proportional to 3,965.61, 5,472.36 and 2,173.08

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Solution

The fourth proportional to 3,965.61, 5,472.36 and 2,173.08 is: 2,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.61 : 5,472.36 = 2,173.08 : x
  2. Step 2: Convert to fraction form
    3,965.61/5,472.36 = 2,173.08/x
  3. Step 3: Cross multiply
    3,965.61x = 5,472.36 × 2,173.08
  4. Step 4: Simplify right side
    3,965.61x = 11,891,876.07
  5. Step 5: Solve for x
    x = 11,891,876.07/3,965.61
  6. Step 6: Final answer
    x = 2,998.75

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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.