Home / 2,215.10-3,322.65-1,631.90

Finding the Fourth Proportional to 2,215.10, 3,322.65 and 1,631.90

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Solution

The fourth proportional to 2,215.10, 3,322.65 and 1,631.90 is: 2,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.10 : 3,322.65 = 1,631.90 : x
  2. Step 2: Convert to fraction form
    2,215.10/3,322.65 = 1,631.90/x
  3. Step 3: Cross multiply
    2,215.10x = 3,322.65 × 1,631.90
  4. Step 4: Simplify right side
    2,215.10x = 5,422,232.54
  5. Step 5: Solve for x
    x = 5,422,232.54/2,215.10
  6. Step 6: Final answer
    x = 2,447.85

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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.