Home / 2,174.08-3,247.87-1,387.82

Finding the Fourth Proportional to 2,174.08, 3,247.87 and 1,387.82

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Solution

The fourth proportional to 2,174.08, 3,247.87 and 1,387.82 is: 2,073.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.08 : 3,247.87 = 1,387.82 : x
  2. Step 2: Convert to fraction form
    2,174.08/3,247.87 = 1,387.82/x
  3. Step 3: Cross multiply
    2,174.08x = 3,247.87 × 1,387.82
  4. Step 4: Simplify right side
    2,174.08x = 4,507,458.94
  5. Step 5: Solve for x
    x = 4,507,458.94/2,174.08
  6. Step 6: Final answer
    x = 2,073.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.