Home / 2,179.22-3,006.02-1,393.66

Finding the Fourth Proportional to 2,179.22, 3,006.02 and 1,393.66

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Solution

The fourth proportional to 2,179.22, 3,006.02 and 1,393.66 is: 1,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.22 : 3,006.02 = 1,393.66 : x
  2. Step 2: Convert to fraction form
    2,179.22/3,006.02 = 1,393.66/x
  3. Step 3: Cross multiply
    2,179.22x = 3,006.02 × 1,393.66
  4. Step 4: Simplify right side
    2,179.22x = 4,189,369.83
  5. Step 5: Solve for x
    x = 4,189,369.83/2,179.22
  6. Step 6: Final answer
    x = 1,922.42

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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.