Home / 3,829.54-5,280.13-2,979.04

Finding the Fourth Proportional to 3,829.54, 5,280.13 and 2,979.04

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Solution

The fourth proportional to 3,829.54, 5,280.13 and 2,979.04 is: 4,107.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.54 : 5,280.13 = 2,979.04 : x
  2. Step 2: Convert to fraction form
    3,829.54/5,280.13 = 2,979.04/x
  3. Step 3: Cross multiply
    3,829.54x = 5,280.13 × 2,979.04
  4. Step 4: Simplify right side
    3,829.54x = 15,729,718.48
  5. Step 5: Solve for x
    x = 15,729,718.48/3,829.54
  6. Step 6: Final answer
    x = 4,107.47

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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.