Home / 3,776.87-5,212.41-2,205.47

Finding the Fourth Proportional to 3,776.87, 5,212.41 and 2,205.47

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Solution

The fourth proportional to 3,776.87, 5,212.41 and 2,205.47 is: 3,043.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.87 : 5,212.41 = 2,205.47 : x
  2. Step 2: Convert to fraction form
    3,776.87/5,212.41 = 2,205.47/x
  3. Step 3: Cross multiply
    3,776.87x = 5,212.41 × 2,205.47
  4. Step 4: Simplify right side
    3,776.87x = 11,495,813.88
  5. Step 5: Solve for x
    x = 11,495,813.88/3,776.87
  6. Step 6: Final answer
    x = 3,043.74

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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.