Home / 3,682.58-5,518.82-1,947.74

Finding the Fourth Proportional to 3,682.58, 5,518.82 and 1,947.74

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Solution

The fourth proportional to 3,682.58, 5,518.82 and 1,947.74 is: 2,918.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,682.58 : 5,518.82 = 1,947.74 : x
  2. Step 2: Convert to fraction form
    3,682.58/5,518.82 = 1,947.74/x
  3. Step 3: Cross multiply
    3,682.58x = 5,518.82 × 1,947.74
  4. Step 4: Simplify right side
    3,682.58x = 10,749,226.47
  5. Step 5: Solve for x
    x = 10,749,226.47/3,682.58
  6. Step 6: Final answer
    x = 2,918.94

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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.