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Finding the Fourth Proportional to 6,449.01, 9,676.47 and 3,821.72

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Solution

The fourth proportional to 6,449.01, 9,676.47 and 3,821.72 is: 5,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449.01 : 9,676.47 = 3,821.72 : x
  2. Step 2: Convert to fraction form
    6,449.01/9,676.47 = 3,821.72/x
  3. Step 3: Cross multiply
    6,449.01x = 9,676.47 × 3,821.72
  4. Step 4: Simplify right side
    6,449.01x = 36,980,758.93
  5. Step 5: Solve for x
    x = 36,980,758.93/6,449.01
  6. Step 6: Final answer
    x = 5,734.34

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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.