Home / 3,999.56-5,515.64-3,162.26

Finding the Fourth Proportional to 3,999.56, 5,515.64 and 3,162.26

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Solution

The fourth proportional to 3,999.56, 5,515.64 and 3,162.26 is: 4,360.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.56 : 5,515.64 = 3,162.26 : x
  2. Step 2: Convert to fraction form
    3,999.56/5,515.64 = 3,162.26/x
  3. Step 3: Cross multiply
    3,999.56x = 5,515.64 × 3,162.26
  4. Step 4: Simplify right side
    3,999.56x = 17,441,871.94
  5. Step 5: Solve for x
    x = 17,441,871.94/3,999.56
  6. Step 6: Final answer
    x = 4,360.95

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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.