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Finding the Fourth Proportional to 3,379.87, 4,664.24 and 1,887.54

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Solution

The fourth proportional to 3,379.87, 4,664.24 and 1,887.54 is: 2,604.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.87 : 4,664.24 = 1,887.54 : x
  2. Step 2: Convert to fraction form
    3,379.87/4,664.24 = 1,887.54/x
  3. Step 3: Cross multiply
    3,379.87x = 4,664.24 × 1,887.54
  4. Step 4: Simplify right side
    3,379.87x = 8,803,939.57
  5. Step 5: Solve for x
    x = 8,803,939.57/3,379.87
  6. Step 6: Final answer
    x = 2,604.82

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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.