Home / 4,845.70-6,686.26-2,855.98

Finding the Fourth Proportional to 4,845.70, 6,686.26 and 2,855.98

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Solution

The fourth proportional to 4,845.70, 6,686.26 and 2,855.98 is: 3,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.70 : 6,686.26 = 2,855.98 : x
  2. Step 2: Convert to fraction form
    4,845.70/6,686.26 = 2,855.98/x
  3. Step 3: Cross multiply
    4,845.70x = 6,686.26 × 2,855.98
  4. Step 4: Simplify right side
    4,845.70x = 19,095,824.83
  5. Step 5: Solve for x
    x = 19,095,824.83/4,845.70
  6. Step 6: Final answer
    x = 3,940.78

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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.