Home / 2,540.40-3,813.96-2,511.12

Finding the Fourth Proportional to 2,540.40, 3,813.96 and 2,511.12

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Solution

The fourth proportional to 2,540.40, 3,813.96 and 2,511.12 is: 3,770.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.40 : 3,813.96 = 2,511.12 : x
  2. Step 2: Convert to fraction form
    2,540.40/3,813.96 = 2,511.12/x
  3. Step 3: Cross multiply
    2,540.40x = 3,813.96 × 2,511.12
  4. Step 4: Simplify right side
    2,540.40x = 9,577,311.24
  5. Step 5: Solve for x
    x = 9,577,311.24/2,540.40
  6. Step 6: Final answer
    x = 3,770.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.