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Finding the Fourth Proportional to 6,321.92, 9,479.04 and 3,587.84

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Solution

The fourth proportional to 6,321.92, 9,479.04 and 3,587.84 is: 5,379.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.92 : 9,479.04 = 3,587.84 : x
  2. Step 2: Convert to fraction form
    6,321.92/9,479.04 = 3,587.84/x
  3. Step 3: Cross multiply
    6,321.92x = 9,479.04 × 3,587.84
  4. Step 4: Simplify right side
    6,321.92x = 34,009,278.87
  5. Step 5: Solve for x
    x = 34,009,278.87/6,321.92
  6. Step 6: Final answer
    x = 5,379.58

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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.