Home / 5,511.20-8,268.05-1,813.46

Finding the Fourth Proportional to 5,511.20, 8,268.05 and 1,813.46

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Solution

The fourth proportional to 5,511.20, 8,268.05 and 1,813.46 is: 2,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.20 : 8,268.05 = 1,813.46 : x
  2. Step 2: Convert to fraction form
    5,511.20/8,268.05 = 1,813.46/x
  3. Step 3: Cross multiply
    5,511.20x = 8,268.05 × 1,813.46
  4. Step 4: Simplify right side
    5,511.20x = 14,993,777.95
  5. Step 5: Solve for x
    x = 14,993,777.95/5,511.20
  6. Step 6: Final answer
    x = 2,720.60

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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.