Home / 3,689.83-5,089.36-2,196.59

Finding the Fourth Proportional to 3,689.83, 5,089.36 and 2,196.59

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Solution

The fourth proportional to 3,689.83, 5,089.36 and 2,196.59 is: 3,029.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.83 : 5,089.36 = 2,196.59 : x
  2. Step 2: Convert to fraction form
    3,689.83/5,089.36 = 2,196.59/x
  3. Step 3: Cross multiply
    3,689.83x = 5,089.36 × 2,196.59
  4. Step 4: Simplify right side
    3,689.83x = 11,179,237.28
  5. Step 5: Solve for x
    x = 11,179,237.28/3,689.83
  6. Step 6: Final answer
    x = 3,029.74

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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.