Home / 2,782.08-4,169.97-2,161.17

Finding the Fourth Proportional to 2,782.08, 4,169.97 and 2,161.17

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Solution

The fourth proportional to 2,782.08, 4,169.97 and 2,161.17 is: 3,239.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.08 : 4,169.97 = 2,161.17 : x
  2. Step 2: Convert to fraction form
    2,782.08/4,169.97 = 2,161.17/x
  3. Step 3: Cross multiply
    2,782.08x = 4,169.97 × 2,161.17
  4. Step 4: Simplify right side
    2,782.08x = 9,012,014.06
  5. Step 5: Solve for x
    x = 9,012,014.06/2,782.08
  6. Step 6: Final answer
    x = 3,239.31

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1.5x scale

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.