Home / 4,282.20-5,907.78-3,165.78

Finding the Fourth Proportional to 4,282.20, 5,907.78 and 3,165.78

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Solution

The fourth proportional to 4,282.20, 5,907.78 and 3,165.78 is: 4,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,282.20 : 5,907.78 = 3,165.78 : x
  2. Step 2: Convert to fraction form
    4,282.20/5,907.78 = 3,165.78/x
  3. Step 3: Cross multiply
    4,282.20x = 5,907.78 × 3,165.78
  4. Step 4: Simplify right side
    4,282.20x = 18,702,731.77
  5. Step 5: Solve for x
    x = 18,702,731.77/4,282.20
  6. Step 6: Final answer
    x = 4,367.55

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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.