Home / 2,170.64-3,247.87-1,293.61

Finding the Fourth Proportional to 2,170.64, 3,247.87 and 1,293.61

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Solution

The fourth proportional to 2,170.64, 3,247.87 and 1,293.61 is: 1,935.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.64 : 3,247.87 = 1,293.61 : x
  2. Step 2: Convert to fraction form
    2,170.64/3,247.87 = 1,293.61/x
  3. Step 3: Cross multiply
    2,170.64x = 3,247.87 × 1,293.61
  4. Step 4: Simplify right side
    2,170.64x = 4,201,493.90
  5. Step 5: Solve for x
    x = 4,201,493.90/2,170.64
  6. Step 6: Final answer
    x = 1,935.61

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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.