Home / 3,965.79-5,472.74-2,173.25

Finding the Fourth Proportional to 3,965.79, 5,472.74 and 2,173.25

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Solution

The fourth proportional to 3,965.79, 5,472.74 and 2,173.25 is: 2,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.79 : 5,472.74 = 2,173.25 : x
  2. Step 2: Convert to fraction form
    3,965.79/5,472.74 = 2,173.25/x
  3. Step 3: Cross multiply
    3,965.79x = 5,472.74 × 2,173.25
  4. Step 4: Simplify right side
    3,965.79x = 11,893,593.98
  5. Step 5: Solve for x
    x = 11,893,593.98/3,965.79
  6. Step 6: Final answer
    x = 2,999.05

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1.5x scale

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.