Home / 2,163.72-2,984.85-1,765.92

Finding the Fourth Proportional to 2,163.72, 2,984.85 and 1,765.92

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Solution

The fourth proportional to 2,163.72, 2,984.85 and 1,765.92 is: 2,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.72 : 2,984.85 = 1,765.92 : x
  2. Step 2: Convert to fraction form
    2,163.72/2,984.85 = 1,765.92/x
  3. Step 3: Cross multiply
    2,163.72x = 2,984.85 × 1,765.92
  4. Step 4: Simplify right side
    2,163.72x = 5,271,006.31
  5. Step 5: Solve for x
    x = 5,271,006.31/2,163.72
  6. Step 6: Final answer
    x = 2,436.09

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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.