Home / 3,129.37-4,317.66-1,950.62

Finding the Fourth Proportional to 3,129.37, 4,317.66 and 1,950.62

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Solution

The fourth proportional to 3,129.37, 4,317.66 and 1,950.62 is: 2,691.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.37 : 4,317.66 = 1,950.62 : x
  2. Step 2: Convert to fraction form
    3,129.37/4,317.66 = 1,950.62/x
  3. Step 3: Cross multiply
    3,129.37x = 4,317.66 × 1,950.62
  4. Step 4: Simplify right side
    3,129.37x = 8,422,092.36
  5. Step 5: Solve for x
    x = 8,422,092.36/3,129.37
  6. Step 6: Final answer
    x = 2,691.31

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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.