Home / 3,999.06-5,514.95-3,161.76

Finding the Fourth Proportional to 3,999.06, 5,514.95 and 3,161.76

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Solution

The fourth proportional to 3,999.06, 5,514.95 and 3,161.76 is: 4,360.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.06 : 5,514.95 = 3,161.76 : x
  2. Step 2: Convert to fraction form
    3,999.06/5,514.95 = 3,161.76/x
  3. Step 3: Cross multiply
    3,999.06x = 5,514.95 × 3,161.76
  4. Step 4: Simplify right side
    3,999.06x = 17,436,932.50
  5. Step 5: Solve for x
    x = 17,436,932.50/3,999.06
  6. Step 6: Final answer
    x = 4,360.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.