Home / 3,764.78-5,192.12-2,822.69

Finding the Fourth Proportional to 3,764.78, 5,192.12 and 2,822.69

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Solution

The fourth proportional to 3,764.78, 5,192.12 and 2,822.69 is: 3,892.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.78 : 5,192.12 = 2,822.69 : x
  2. Step 2: Convert to fraction form
    3,764.78/5,192.12 = 2,822.69/x
  3. Step 3: Cross multiply
    3,764.78x = 5,192.12 × 2,822.69
  4. Step 4: Simplify right side
    3,764.78x = 14,655,705.13
  5. Step 5: Solve for x
    x = 14,655,705.13/3,764.78
  6. Step 6: Final answer
    x = 3,892.85

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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.