Home / 3,955.69-5,449.56-2,758.49

Finding the Fourth Proportional to 3,955.69, 5,449.56 and 2,758.49

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Solution

The fourth proportional to 3,955.69, 5,449.56 and 2,758.49 is: 3,800.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.69 : 5,449.56 = 2,758.49 : x
  2. Step 2: Convert to fraction form
    3,955.69/5,449.56 = 2,758.49/x
  3. Step 3: Cross multiply
    3,955.69x = 5,449.56 × 2,758.49
  4. Step 4: Simplify right side
    3,955.69x = 15,032,555.12
  5. Step 5: Solve for x
    x = 15,032,555.12/3,955.69
  6. Step 6: Final answer
    x = 3,800.24

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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.