Home / 3,458-5,174.04-2,153.36

Finding the Fourth Proportional to 3,458, 5,174.04 and 2,153.36

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Solution

The fourth proportional to 3,458, 5,174.04 and 2,153.36 is: 3,221.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458 : 5,174.04 = 2,153.36 : x
  2. Step 2: Convert to fraction form
    3,458/5,174.04 = 2,153.36/x
  3. Step 3: Cross multiply
    3,458x = 5,174.04 × 2,153.36
  4. Step 4: Simplify right side
    3,458x = 11,141,570.77
  5. Step 5: Solve for x
    x = 11,141,570.77/3,458
  6. Step 6: Final answer
    x = 3,221.97

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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.