Home / 2,447.86-3,379.68-1,887.34

Finding the Fourth Proportional to 2,447.86, 3,379.68 and 1,887.34

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Solution

The fourth proportional to 2,447.86, 3,379.68 and 1,887.34 is: 2,605.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.86 : 3,379.68 = 1,887.34 : x
  2. Step 2: Convert to fraction form
    2,447.86/3,379.68 = 1,887.34/x
  3. Step 3: Cross multiply
    2,447.86x = 3,379.68 × 1,887.34
  4. Step 4: Simplify right side
    2,447.86x = 6,378,605.25
  5. Step 5: Solve for x
    x = 6,378,605.25/2,447.86
  6. Step 6: Final answer
    x = 2,605.79

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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.