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Finding the Fourth Proportional to 3,379.78, 4,663.83 and 1,887.58

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Solution

The fourth proportional to 3,379.78, 4,663.83 and 1,887.58 is: 2,604.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.78 : 4,663.83 = 1,887.58 : x
  2. Step 2: Convert to fraction form
    3,379.78/4,663.83 = 1,887.58/x
  3. Step 3: Cross multiply
    3,379.78x = 4,663.83 × 1,887.58
  4. Step 4: Simplify right side
    3,379.78x = 8,803,352.23
  5. Step 5: Solve for x
    x = 8,803,352.23/3,379.78
  6. Step 6: Final answer
    x = 2,604.71

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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.