Home / 2,447.12-3,666.36-2,179.28

Finding the Fourth Proportional to 2,447.12, 3,666.36 and 2,179.28

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Solution

The fourth proportional to 2,447.12, 3,666.36 and 2,179.28 is: 3,265.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.12 : 3,666.36 = 2,179.28 : x
  2. Step 2: Convert to fraction form
    2,447.12/3,666.36 = 2,179.28/x
  3. Step 3: Cross multiply
    2,447.12x = 3,666.36 × 2,179.28
  4. Step 4: Simplify right side
    2,447.12x = 7,990,025.02
  5. Step 5: Solve for x
    x = 7,990,025.02/2,447.12
  6. Step 6: Final answer
    x = 3,265.07

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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.