Home / 3,979.74-5,490.41-2,563.19

Finding the Fourth Proportional to 3,979.74, 5,490.41 and 2,563.19

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Solution

The fourth proportional to 3,979.74, 5,490.41 and 2,563.19 is: 3,536.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.74 : 5,490.41 = 2,563.19 : x
  2. Step 2: Convert to fraction form
    3,979.74/5,490.41 = 2,563.19/x
  3. Step 3: Cross multiply
    3,979.74x = 5,490.41 × 2,563.19
  4. Step 4: Simplify right side
    3,979.74x = 14,072,923.74
  5. Step 5: Solve for x
    x = 14,072,923.74/3,979.74
  6. Step 6: Final answer
    x = 3,536.14

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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.