Home / 2,921.29-4,031.81-1,662.04

Finding the Fourth Proportional to 2,921.29, 4,031.81 and 1,662.04

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Solution

The fourth proportional to 2,921.29, 4,031.81 and 1,662.04 is: 2,293.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.29 : 4,031.81 = 1,662.04 : x
  2. Step 2: Convert to fraction form
    2,921.29/4,031.81 = 1,662.04/x
  3. Step 3: Cross multiply
    2,921.29x = 4,031.81 × 1,662.04
  4. Step 4: Simplify right side
    2,921.29x = 6,701,029.49
  5. Step 5: Solve for x
    x = 6,701,029.49/2,921.29
  6. Step 6: Final answer
    x = 2,293.86

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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.