Home / 3,453.22-5,178.21-1,808.11

Finding the Fourth Proportional to 3,453.22, 5,178.21 and 1,808.11

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Solution

The fourth proportional to 3,453.22, 5,178.21 and 1,808.11 is: 2,711.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.22 : 5,178.21 = 1,808.11 : x
  2. Step 2: Convert to fraction form
    3,453.22/5,178.21 = 1,808.11/x
  3. Step 3: Cross multiply
    3,453.22x = 5,178.21 × 1,808.11
  4. Step 4: Simplify right side
    3,453.22x = 9,362,773.28
  5. Step 5: Solve for x
    x = 9,362,773.28/3,453.22
  6. Step 6: Final answer
    x = 2,711.32

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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.