Home / 4,942.80-6,820.96-2,704.80

Finding the Fourth Proportional to 4,942.80, 6,820.96 and 2,704.80

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Solution

The fourth proportional to 4,942.80, 6,820.96 and 2,704.80 is: 3,732.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.80 : 6,820.96 = 2,704.80 : x
  2. Step 2: Convert to fraction form
    4,942.80/6,820.96 = 2,704.80/x
  3. Step 3: Cross multiply
    4,942.80x = 6,820.96 × 2,704.80
  4. Step 4: Simplify right side
    4,942.80x = 18,449,332.61
  5. Step 5: Solve for x
    x = 18,449,332.61/4,942.80
  6. Step 6: Final answer
    x = 3,732.57

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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.