Home / 3,687.92-5,089.35-2,195.89

Finding the Fourth Proportional to 3,687.92, 5,089.35 and 2,195.89

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Solution

The fourth proportional to 3,687.92, 5,089.35 and 2,195.89 is: 3,030.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.92 : 5,089.35 = 2,195.89 : x
  2. Step 2: Convert to fraction form
    3,687.92/5,089.35 = 2,195.89/x
  3. Step 3: Cross multiply
    3,687.92x = 5,089.35 × 2,195.89
  4. Step 4: Simplify right side
    3,687.92x = 11,175,652.77
  5. Step 5: Solve for x
    x = 11,175,652.77/3,687.92
  6. Step 6: Final answer
    x = 3,030.34

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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.