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Finding the Fourth Proportional to 4,879.92, 7,310.70 and 2,411.86

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Solution

The fourth proportional to 4,879.92, 7,310.70 and 2,411.86 is: 3,613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.92 : 7,310.70 = 2,411.86 : x
  2. Step 2: Convert to fraction form
    4,879.92/7,310.70 = 2,411.86/x
  3. Step 3: Cross multiply
    4,879.92x = 7,310.70 × 2,411.86
  4. Step 4: Simplify right side
    4,879.92x = 17,632,384.90
  5. Step 5: Solve for x
    x = 17,632,384.90/4,879.92
  6. Step 6: Final answer
    x = 3,613.25

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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.