Home / 7,155.54-10,730.88-2,771.82

Finding the Fourth Proportional to 7,155.54, 10,730.88 and 2,771.82

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Solution

The fourth proportional to 7,155.54, 10,730.88 and 2,771.82 is: 4,156.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.54 : 10,730.88 = 2,771.82 : x
  2. Step 2: Convert to fraction form
    7,155.54/10,730.88 = 2,771.82/x
  3. Step 3: Cross multiply
    7,155.54x = 10,730.88 × 2,771.82
  4. Step 4: Simplify right side
    7,155.54x = 29,744,067.80
  5. Step 5: Solve for x
    x = 29,744,067.80/7,155.54
  6. Step 6: Final answer
    x = 4,156.79

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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.