Home / 2,540.25-3,502.10-2,171.19

Finding the Fourth Proportional to 2,540.25, 3,502.10 and 2,171.19

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Solution

The fourth proportional to 2,540.25, 3,502.10 and 2,171.19 is: 2,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.25 : 3,502.10 = 2,171.19 : x
  2. Step 2: Convert to fraction form
    2,540.25/3,502.10 = 2,171.19/x
  3. Step 3: Cross multiply
    2,540.25x = 3,502.10 × 2,171.19
  4. Step 4: Simplify right side
    2,540.25x = 7,603,724.50
  5. Step 5: Solve for x
    x = 7,603,724.50/2,540.25
  6. Step 6: Final answer
    x = 2,993.30

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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.