Home / 5,320.39-7,972.31-2,031.69

Finding the Fourth Proportional to 5,320.39, 7,972.31 and 2,031.69

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Solution

The fourth proportional to 5,320.39, 7,972.31 and 2,031.69 is: 3,044.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.39 : 7,972.31 = 2,031.69 : x
  2. Step 2: Convert to fraction form
    5,320.39/7,972.31 = 2,031.69/x
  3. Step 3: Cross multiply
    5,320.39x = 7,972.31 × 2,031.69
  4. Step 4: Simplify right side
    5,320.39x = 16,197,241.21
  5. Step 5: Solve for x
    x = 16,197,241.21/5,320.39
  6. Step 6: Final answer
    x = 3,044.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.