Home / 6,346.48-8,761.32-3,989.92

Finding the Fourth Proportional to 6,346.48, 8,761.32 and 3,989.92

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Solution

The fourth proportional to 6,346.48, 8,761.32 and 3,989.92 is: 5,508.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,346.48 : 8,761.32 = 3,989.92 : x
  2. Step 2: Convert to fraction form
    6,346.48/8,761.32 = 3,989.92/x
  3. Step 3: Cross multiply
    6,346.48x = 8,761.32 × 3,989.92
  4. Step 4: Simplify right side
    6,346.48x = 34,956,965.89
  5. Step 5: Solve for x
    x = 34,956,965.89/6,346.48
  6. Step 6: Final answer
    x = 5,508.09

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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.