Home / 2,919.97-4,025.38-1,800.16

Finding the Fourth Proportional to 2,919.97, 4,025.38 and 1,800.16

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Solution

The fourth proportional to 2,919.97, 4,025.38 and 1,800.16 is: 2,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.97 : 4,025.38 = 1,800.16 : x
  2. Step 2: Convert to fraction form
    2,919.97/4,025.38 = 1,800.16/x
  3. Step 3: Cross multiply
    2,919.97x = 4,025.38 × 1,800.16
  4. Step 4: Simplify right side
    2,919.97x = 7,246,316.87
  5. Step 5: Solve for x
    x = 7,246,316.87/2,919.97
  6. Step 6: Final answer
    x = 2,481.64

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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.