Home / 3,969.16-5,476.74-2,396.20

Finding the Fourth Proportional to 3,969.16, 5,476.74 and 2,396.20

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Solution

The fourth proportional to 3,969.16, 5,476.74 and 2,396.20 is: 3,306.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.16 : 5,476.74 = 2,396.20 : x
  2. Step 2: Convert to fraction form
    3,969.16/5,476.74 = 2,396.20/x
  3. Step 3: Cross multiply
    3,969.16x = 5,476.74 × 2,396.20
  4. Step 4: Simplify right side
    3,969.16x = 13,123,364.39
  5. Step 5: Solve for x
    x = 13,123,364.39/3,969.16
  6. Step 6: Final answer
    x = 3,306.33

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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.