Home / 2,979.44-4,447.10-2,629.18

Finding the Fourth Proportional to 2,979.44, 4,447.10 and 2,629.18

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Solution

The fourth proportional to 2,979.44, 4,447.10 and 2,629.18 is: 3,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.44 : 4,447.10 = 2,629.18 : x
  2. Step 2: Convert to fraction form
    2,979.44/4,447.10 = 2,629.18/x
  3. Step 3: Cross multiply
    2,979.44x = 4,447.10 × 2,629.18
  4. Step 4: Simplify right side
    2,979.44x = 11,692,226.38
  5. Step 5: Solve for x
    x = 11,692,226.38/2,979.44
  6. Step 6: Final answer
    x = 3,924.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.