Home / 8,179.13-12,268.89-2,985

Finding the Fourth Proportional to 8,179.13, 12,268.89 and 2,985

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Solution

The fourth proportional to 8,179.13, 12,268.89 and 2,985 is: 4,477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.13 : 12,268.89 = 2,985 : x
  2. Step 2: Convert to fraction form
    8,179.13/12,268.89 = 2,985/x
  3. Step 3: Cross multiply
    8,179.13x = 12,268.89 × 2,985
  4. Step 4: Simplify right side
    8,179.13x = 36,622,636.65
  5. Step 5: Solve for x
    x = 36,622,636.65/8,179.13
  6. Step 6: Final answer
    x = 4,477.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.