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Finding the Fourth Proportional to 5,579.86, 8,360.61 and 2,803.72

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Solution

The fourth proportional to 5,579.86, 8,360.61 and 2,803.72 is: 4,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.86 : 8,360.61 = 2,803.72 : x
  2. Step 2: Convert to fraction form
    5,579.86/8,360.61 = 2,803.72/x
  3. Step 3: Cross multiply
    5,579.86x = 8,360.61 × 2,803.72
  4. Step 4: Simplify right side
    5,579.86x = 23,440,809.47
  5. Step 5: Solve for x
    x = 23,440,809.47/5,579.86
  6. Step 6: Final answer
    x = 4,200.97

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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.