Home / 3,965.09-5,471.87-2,392.88

Finding the Fourth Proportional to 3,965.09, 5,471.87 and 2,392.88

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Solution

The fourth proportional to 3,965.09, 5,471.87 and 2,392.88 is: 3,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.09 : 5,471.87 = 2,392.88 : x
  2. Step 2: Convert to fraction form
    3,965.09/5,471.87 = 2,392.88/x
  3. Step 3: Cross multiply
    3,965.09x = 5,471.87 × 2,392.88
  4. Step 4: Simplify right side
    3,965.09x = 13,093,488.96
  5. Step 5: Solve for x
    x = 13,093,488.96/3,965.09
  6. Step 6: Final answer
    x = 3,302.20

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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.