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Finding the Fourth Proportional to 4,259.72, 5,877.72 and 2,769.68

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Solution

The fourth proportional to 4,259.72, 5,877.72 and 2,769.68 is: 3,821.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.72 : 5,877.72 = 2,769.68 : x
  2. Step 2: Convert to fraction form
    4,259.72/5,877.72 = 2,769.68/x
  3. Step 3: Cross multiply
    4,259.72x = 5,877.72 × 2,769.68
  4. Step 4: Simplify right side
    4,259.72x = 16,279,403.53
  5. Step 5: Solve for x
    x = 16,279,403.53/4,259.72
  6. Step 6: Final answer
    x = 3,821.71

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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.