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Finding the Fourth Proportional to 6,274.65, 8,658.68 and 3,621.90

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Solution

The fourth proportional to 6,274.65, 8,658.68 and 3,621.90 is: 4,998.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,274.65 : 8,658.68 = 3,621.90 : x
  2. Step 2: Convert to fraction form
    6,274.65/8,658.68 = 3,621.90/x
  3. Step 3: Cross multiply
    6,274.65x = 8,658.68 × 3,621.90
  4. Step 4: Simplify right side
    6,274.65x = 31,360,854.98
  5. Step 5: Solve for x
    x = 31,360,854.98/6,274.65
  6. Step 6: Final answer
    x = 4,998.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.