Home / 2,167.32-3,245.77-1,240.07

Finding the Fourth Proportional to 2,167.32, 3,245.77 and 1,240.07

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Solution

The fourth proportional to 2,167.32, 3,245.77 and 1,240.07 is: 1,857.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.32 : 3,245.77 = 1,240.07 : x
  2. Step 2: Convert to fraction form
    2,167.32/3,245.77 = 1,240.07/x
  3. Step 3: Cross multiply
    2,167.32x = 3,245.77 × 1,240.07
  4. Step 4: Simplify right side
    2,167.32x = 4,024,982.00
  5. Step 5: Solve for x
    x = 4,024,982.00/2,167.32
  6. Step 6: Final answer
    x = 1,857.12

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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.