Home / 3,057.12-4,209.30-2,661.84

Finding the Fourth Proportional to 3,057.12, 4,209.30 and 2,661.84

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Solution

The fourth proportional to 3,057.12, 4,209.30 and 2,661.84 is: 3,665.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.12 : 4,209.30 = 2,661.84 : x
  2. Step 2: Convert to fraction form
    3,057.12/4,209.30 = 2,661.84/x
  3. Step 3: Cross multiply
    3,057.12x = 4,209.30 × 2,661.84
  4. Step 4: Simplify right side
    3,057.12x = 11,204,483.11
  5. Step 5: Solve for x
    x = 11,204,483.11/3,057.12
  6. Step 6: Final answer
    x = 3,665.05

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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.