Home / 5,409.05-8,110.08-2,122.47

Finding the Fourth Proportional to 5,409.05, 8,110.08 and 2,122.47

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Solution

The fourth proportional to 5,409.05, 8,110.08 and 2,122.47 is: 3,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.05 : 8,110.08 = 2,122.47 : x
  2. Step 2: Convert to fraction form
    5,409.05/8,110.08 = 2,122.47/x
  3. Step 3: Cross multiply
    5,409.05x = 8,110.08 × 2,122.47
  4. Step 4: Simplify right side
    5,409.05x = 17,213,390.89
  5. Step 5: Solve for x
    x = 17,213,390.89/5,409.05
  6. Step 6: Final answer
    x = 3,182.33

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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.