Home / 4,165.24-5,745.86-2,820.89

Finding the Fourth Proportional to 4,165.24, 5,745.86 and 2,820.89

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Solution

The fourth proportional to 4,165.24, 5,745.86 and 2,820.89 is: 3,891.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,165.24 : 5,745.86 = 2,820.89 : x
  2. Step 2: Convert to fraction form
    4,165.24/5,745.86 = 2,820.89/x
  3. Step 3: Cross multiply
    4,165.24x = 5,745.86 × 2,820.89
  4. Step 4: Simplify right side
    4,165.24x = 16,208,410.29
  5. Step 5: Solve for x
    x = 16,208,410.29/4,165.24
  6. Step 6: Final answer
    x = 3,891.36

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Half scale
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1.5x scale

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.