Home / 3,839.98-5,296.70-2,515.28

Finding the Fourth Proportional to 3,839.98, 5,296.70 and 2,515.28

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Solution

The fourth proportional to 3,839.98, 5,296.70 and 2,515.28 is: 3,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.98 : 5,296.70 = 2,515.28 : x
  2. Step 2: Convert to fraction form
    3,839.98/5,296.70 = 2,515.28/x
  3. Step 3: Cross multiply
    3,839.98x = 5,296.70 × 2,515.28
  4. Step 4: Simplify right side
    3,839.98x = 13,322,683.58
  5. Step 5: Solve for x
    x = 13,322,683.58/3,839.98
  6. Step 6: Final answer
    x = 3,469.47

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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.