Home / 2,749.86-3,793.56-1,687.32

Finding the Fourth Proportional to 2,749.86, 3,793.56 and 1,687.32

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Solution

The fourth proportional to 2,749.86, 3,793.56 and 1,687.32 is: 2,327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.86 : 3,793.56 = 1,687.32 : x
  2. Step 2: Convert to fraction form
    2,749.86/3,793.56 = 1,687.32/x
  3. Step 3: Cross multiply
    2,749.86x = 3,793.56 × 1,687.32
  4. Step 4: Simplify right side
    2,749.86x = 6,400,949.66
  5. Step 5: Solve for x
    x = 6,400,949.66/2,749.86
  6. Step 6: Final answer
    x = 2,327.74

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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.