Home / 4,129.52-6,190.16-1,663.61

Finding the Fourth Proportional to 4,129.52, 6,190.16 and 1,663.61

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Solution

The fourth proportional to 4,129.52, 6,190.16 and 1,663.61 is: 2,493.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.52 : 6,190.16 = 1,663.61 : x
  2. Step 2: Convert to fraction form
    4,129.52/6,190.16 = 1,663.61/x
  3. Step 3: Cross multiply
    4,129.52x = 6,190.16 × 1,663.61
  4. Step 4: Simplify right side
    4,129.52x = 10,297,972.81
  5. Step 5: Solve for x
    x = 10,297,972.81/4,129.52
  6. Step 6: Final answer
    x = 2,493.75

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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.