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Finding the Fourth Proportional to 5,808.64, 8,717.28 and 3,216.64

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Solution

The fourth proportional to 5,808.64, 8,717.28 and 3,216.64 is: 4,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.64 : 8,717.28 = 3,216.64 : x
  2. Step 2: Convert to fraction form
    5,808.64/8,717.28 = 3,216.64/x
  3. Step 3: Cross multiply
    5,808.64x = 8,717.28 × 3,216.64
  4. Step 4: Simplify right side
    5,808.64x = 28,040,351.54
  5. Step 5: Solve for x
    x = 28,040,351.54/5,808.64
  6. Step 6: Final answer
    x = 4,827.35

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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.