Home / 2,118.12-3,169.26-2,007

Finding the Fourth Proportional to 2,118.12, 3,169.26 and 2,007

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Solution

The fourth proportional to 2,118.12, 3,169.26 and 2,007 is: 3,003.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.12 : 3,169.26 = 2,007 : x
  2. Step 2: Convert to fraction form
    2,118.12/3,169.26 = 2,007/x
  3. Step 3: Cross multiply
    2,118.12x = 3,169.26 × 2,007
  4. Step 4: Simplify right side
    2,118.12x = 6,360,704.82
  5. Step 5: Solve for x
    x = 6,360,704.82/2,118.12
  6. Step 6: Final answer
    x = 3,003.00

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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.