Home / 5,418.09-8,126.33-2,085.48

Finding the Fourth Proportional to 5,418.09, 8,126.33 and 2,085.48

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Solution

The fourth proportional to 5,418.09, 8,126.33 and 2,085.48 is: 3,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.09 : 8,126.33 = 2,085.48 : x
  2. Step 2: Convert to fraction form
    5,418.09/8,126.33 = 2,085.48/x
  3. Step 3: Cross multiply
    5,418.09x = 8,126.33 × 2,085.48
  4. Step 4: Simplify right side
    5,418.09x = 16,947,288.26
  5. Step 5: Solve for x
    x = 16,947,288.26/5,418.09
  6. Step 6: Final answer
    x = 3,127.91

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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.