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Finding the Fourth Proportional to 5,650.86, 8,470.40 and 1,899.86

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Solution

The fourth proportional to 5,650.86, 8,470.40 and 1,899.86 is: 2,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,650.86 : 8,470.40 = 1,899.86 : x
  2. Step 2: Convert to fraction form
    5,650.86/8,470.40 = 1,899.86/x
  3. Step 3: Cross multiply
    5,650.86x = 8,470.40 × 1,899.86
  4. Step 4: Simplify right side
    5,650.86x = 16,092,536.54
  5. Step 5: Solve for x
    x = 16,092,536.54/5,650.86
  6. Step 6: Final answer
    x = 2,847.80

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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.