Home / 3,979.02-5,493.78-2,584.20

Finding the Fourth Proportional to 3,979.02, 5,493.78 and 2,584.20

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Solution

The fourth proportional to 3,979.02, 5,493.78 and 2,584.20 is: 3,567.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.02 : 5,493.78 = 2,584.20 : x
  2. Step 2: Convert to fraction form
    3,979.02/5,493.78 = 2,584.20/x
  3. Step 3: Cross multiply
    3,979.02x = 5,493.78 × 2,584.20
  4. Step 4: Simplify right side
    3,979.02x = 14,197,026.28
  5. Step 5: Solve for x
    x = 14,197,026.28/3,979.02
  6. Step 6: Final answer
    x = 3,567.97

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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.