Home / 3,453.30-4,767.90-2,655.21

Finding the Fourth Proportional to 3,453.30, 4,767.90 and 2,655.21

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Solution

The fourth proportional to 3,453.30, 4,767.90 and 2,655.21 is: 3,665.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.30 : 4,767.90 = 2,655.21 : x
  2. Step 2: Convert to fraction form
    3,453.30/4,767.90 = 2,655.21/x
  3. Step 3: Cross multiply
    3,453.30x = 4,767.90 × 2,655.21
  4. Step 4: Simplify right side
    3,453.30x = 12,659,775.76
  5. Step 5: Solve for x
    x = 12,659,775.76/3,453.30
  6. Step 6: Final answer
    x = 3,665.99

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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.