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Finding the Fourth Proportional to 6,269.80, 8,653.25 and 3,616.69

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Solution

The fourth proportional to 6,269.80, 8,653.25 and 3,616.69 is: 4,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,269.80 : 8,653.25 = 3,616.69 : x
  2. Step 2: Convert to fraction form
    6,269.80/8,653.25 = 3,616.69/x
  3. Step 3: Cross multiply
    6,269.80x = 8,653.25 × 3,616.69
  4. Step 4: Simplify right side
    6,269.80x = 31,296,122.74
  5. Step 5: Solve for x
    x = 31,296,122.74/6,269.80
  6. Step 6: Final answer
    x = 4,991.57

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1.5x scale

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.