Home / 2,883.92-3,979.64-1,625.28

Finding the Fourth Proportional to 2,883.92, 3,979.64 and 1,625.28

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Solution

The fourth proportional to 2,883.92, 3,979.64 and 1,625.28 is: 2,242.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,883.92 : 3,979.64 = 1,625.28 : x
  2. Step 2: Convert to fraction form
    2,883.92/3,979.64 = 1,625.28/x
  3. Step 3: Cross multiply
    2,883.92x = 3,979.64 × 1,625.28
  4. Step 4: Simplify right side
    2,883.92x = 6,468,029.30
  5. Step 5: Solve for x
    x = 6,468,029.30/2,883.92
  6. Step 6: Final answer
    x = 2,242.79

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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.