Home / 4,920.42-6,789.86-2,795.70

Finding the Fourth Proportional to 4,920.42, 6,789.86 and 2,795.70

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Solution

The fourth proportional to 4,920.42, 6,789.86 and 2,795.70 is: 3,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.42 : 6,789.86 = 2,795.70 : x
  2. Step 2: Convert to fraction form
    4,920.42/6,789.86 = 2,795.70/x
  3. Step 3: Cross multiply
    4,920.42x = 6,789.86 × 2,795.70
  4. Step 4: Simplify right side
    4,920.42x = 18,982,411.60
  5. Step 5: Solve for x
    x = 18,982,411.60/4,920.42
  6. Step 6: Final answer
    x = 3,857.88

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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.