Home / 4,845.12-6,686.10-2,855.22

Finding the Fourth Proportional to 4,845.12, 6,686.10 and 2,855.22

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Solution

The fourth proportional to 4,845.12, 6,686.10 and 2,855.22 is: 3,940.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.12 : 6,686.10 = 2,855.22 : x
  2. Step 2: Convert to fraction form
    4,845.12/6,686.10 = 2,855.22/x
  3. Step 3: Cross multiply
    4,845.12x = 6,686.10 × 2,855.22
  4. Step 4: Simplify right side
    4,845.12x = 19,090,286.44
  5. Step 5: Solve for x
    x = 19,090,286.44/4,845.12
  6. Step 6: Final answer
    x = 3,940.11

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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.