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Finding the Fourth Proportional to 5,920.63, 8,879.95 and 2,171.64

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Solution

The fourth proportional to 5,920.63, 8,879.95 and 2,171.64 is: 3,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.63 : 8,879.95 = 2,171.64 : x
  2. Step 2: Convert to fraction form
    5,920.63/8,879.95 = 2,171.64/x
  3. Step 3: Cross multiply
    5,920.63x = 8,879.95 × 2,171.64
  4. Step 4: Simplify right side
    5,920.63x = 19,284,054.62
  5. Step 5: Solve for x
    x = 19,284,054.62/5,920.63
  6. Step 6: Final answer
    x = 3,257.10

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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.