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Finding the Fourth Proportional to 5,879.04, 8,812.80 and 2,418.72

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Solution

The fourth proportional to 5,879.04, 8,812.80 and 2,418.72 is: 3,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.04 : 8,812.80 = 2,418.72 : x
  2. Step 2: Convert to fraction form
    5,879.04/8,812.80 = 2,418.72/x
  3. Step 3: Cross multiply
    5,879.04x = 8,812.80 × 2,418.72
  4. Step 4: Simplify right side
    5,879.04x = 21,315,695.62
  5. Step 5: Solve for x
    x = 21,315,695.62/5,879.04
  6. Step 6: Final answer
    x = 3,625.71

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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.