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Finding the Fourth Proportional to 6,889.66, 10,335.92 and 3,601.86

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Solution

The fourth proportional to 6,889.66, 10,335.92 and 3,601.86 is: 5,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.66 : 10,335.92 = 3,601.86 : x
  2. Step 2: Convert to fraction form
    6,889.66/10,335.92 = 3,601.86/x
  3. Step 3: Cross multiply
    6,889.66x = 10,335.92 × 3,601.86
  4. Step 4: Simplify right side
    6,889.66x = 37,228,536.81
  5. Step 5: Solve for x
    x = 37,228,536.81/6,889.66
  6. Step 6: Final answer
    x = 5,403.54

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1.5x scale

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.