Home / 2,137.08-3,203.22-1,615.39

Finding the Fourth Proportional to 2,137.08, 3,203.22 and 1,615.39

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Solution

The fourth proportional to 2,137.08, 3,203.22 and 1,615.39 is: 2,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.08 : 3,203.22 = 1,615.39 : x
  2. Step 2: Convert to fraction form
    2,137.08/3,203.22 = 1,615.39/x
  3. Step 3: Cross multiply
    2,137.08x = 3,203.22 × 1,615.39
  4. Step 4: Simplify right side
    2,137.08x = 5,174,447.61
  5. Step 5: Solve for x
    x = 5,174,447.61/2,137.08
  6. Step 6: Final answer
    x = 2,421.27

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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.