Home / 4,907.72-6,770.66-3,138.92

Finding the Fourth Proportional to 4,907.72, 6,770.66 and 3,138.92

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Solution

The fourth proportional to 4,907.72, 6,770.66 and 3,138.92 is: 4,330.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.72 : 6,770.66 = 3,138.92 : x
  2. Step 2: Convert to fraction form
    4,907.72/6,770.66 = 3,138.92/x
  3. Step 3: Cross multiply
    4,907.72x = 6,770.66 × 3,138.92
  4. Step 4: Simplify right side
    4,907.72x = 21,252,560.09
  5. Step 5: Solve for x
    x = 21,252,560.09/4,907.72
  6. Step 6: Final answer
    x = 4,330.43

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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.