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Finding the Fourth Proportional to 6,229.86, 9,339.70 and 2,900.20

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Solution

The fourth proportional to 6,229.86, 9,339.70 and 2,900.20 is: 4,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,229.86 : 9,339.70 = 2,900.20 : x
  2. Step 2: Convert to fraction form
    6,229.86/9,339.70 = 2,900.20/x
  3. Step 3: Cross multiply
    6,229.86x = 9,339.70 × 2,900.20
  4. Step 4: Simplify right side
    6,229.86x = 27,086,951.24
  5. Step 5: Solve for x
    x = 27,086,951.24/6,229.86
  6. Step 6: Final answer
    x = 4,347.92

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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.