Home / 5,163.66-7,129.26-3,486.96

Finding the Fourth Proportional to 5,163.66, 7,129.26 and 3,486.96

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Solution

The fourth proportional to 5,163.66, 7,129.26 and 3,486.96 is: 4,814.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.66 : 7,129.26 = 3,486.96 : x
  2. Step 2: Convert to fraction form
    5,163.66/7,129.26 = 3,486.96/x
  3. Step 3: Cross multiply
    5,163.66x = 7,129.26 × 3,486.96
  4. Step 4: Simplify right side
    5,163.66x = 24,859,444.45
  5. Step 5: Solve for x
    x = 24,859,444.45/5,163.66
  6. Step 6: Final answer
    x = 4,814.31

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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.