Home / 4,939.78-6,816.84-2,701.78

Finding the Fourth Proportional to 4,939.78, 6,816.84 and 2,701.78

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Solution

The fourth proportional to 4,939.78, 6,816.84 and 2,701.78 is: 3,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.78 : 6,816.84 = 2,701.78 : x
  2. Step 2: Convert to fraction form
    4,939.78/6,816.84 = 2,701.78/x
  3. Step 3: Cross multiply
    4,939.78x = 6,816.84 × 2,701.78
  4. Step 4: Simplify right side
    4,939.78x = 18,417,601.98
  5. Step 5: Solve for x
    x = 18,417,601.98/4,939.78
  6. Step 6: Final answer
    x = 3,728.43

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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.