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Finding the Fourth Proportional to 3,259.63, 4,887.02 and 1,960.80

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Solution

The fourth proportional to 3,259.63, 4,887.02 and 1,960.80 is: 2,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.63 : 4,887.02 = 1,960.80 : x
  2. Step 2: Convert to fraction form
    3,259.63/4,887.02 = 1,960.80/x
  3. Step 3: Cross multiply
    3,259.63x = 4,887.02 × 1,960.80
  4. Step 4: Simplify right side
    3,259.63x = 9,582,434.58
  5. Step 5: Solve for x
    x = 9,582,434.58/3,259.63
  6. Step 6: Final answer
    x = 2,939.73

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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.