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Finding the Fourth Proportional to 5,521.70, 8,313.65 and 4,867.79

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Solution

The fourth proportional to 5,521.70, 8,313.65 and 4,867.79 is: 7,329.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.70 : 8,313.65 = 4,867.79 : x
  2. Step 2: Convert to fraction form
    5,521.70/8,313.65 = 4,867.79/x
  3. Step 3: Cross multiply
    5,521.70x = 8,313.65 × 4,867.79
  4. Step 4: Simplify right side
    5,521.70x = 40,469,054.68
  5. Step 5: Solve for x
    x = 40,469,054.68/5,521.70
  6. Step 6: Final answer
    x = 7,329.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.