Home / 3,645.52-5,031.39-2,319.82

Finding the Fourth Proportional to 3,645.52, 5,031.39 and 2,319.82

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Solution

The fourth proportional to 3,645.52, 5,031.39 and 2,319.82 is: 3,201.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.52 : 5,031.39 = 2,319.82 : x
  2. Step 2: Convert to fraction form
    3,645.52/5,031.39 = 2,319.82/x
  3. Step 3: Cross multiply
    3,645.52x = 5,031.39 × 2,319.82
  4. Step 4: Simplify right side
    3,645.52x = 11,671,919.15
  5. Step 5: Solve for x
    x = 11,671,919.15/3,645.52
  6. Step 6: Final answer
    x = 3,201.72

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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.