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Finding the Fourth Proportional to 4,640.94, 6,965.60 and 2,177.19

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Solution

The fourth proportional to 4,640.94, 6,965.60 and 2,177.19 is: 3,267.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.94 : 6,965.60 = 2,177.19 : x
  2. Step 2: Convert to fraction form
    4,640.94/6,965.60 = 2,177.19/x
  3. Step 3: Cross multiply
    4,640.94x = 6,965.60 × 2,177.19
  4. Step 4: Simplify right side
    4,640.94x = 15,165,423.78
  5. Step 5: Solve for x
    x = 15,165,423.78/4,640.94
  6. Step 6: Final answer
    x = 3,267.75

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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.