Home / 2,689.23-3,712.31-2,093.36

Finding the Fourth Proportional to 2,689.23, 3,712.31 and 2,093.36

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Solution

The fourth proportional to 2,689.23, 3,712.31 and 2,093.36 is: 2,889.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.23 : 3,712.31 = 2,093.36 : x
  2. Step 2: Convert to fraction form
    2,689.23/3,712.31 = 2,093.36/x
  3. Step 3: Cross multiply
    2,689.23x = 3,712.31 × 2,093.36
  4. Step 4: Simplify right side
    2,689.23x = 7,771,179.42
  5. Step 5: Solve for x
    x = 7,771,179.42/2,689.23
  6. Step 6: Final answer
    x = 2,889.75

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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.