Home / 3,783.70-5,222.51-2,664.97

Finding the Fourth Proportional to 3,783.70, 5,222.51 and 2,664.97

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Solution

The fourth proportional to 3,783.70, 5,222.51 and 2,664.97 is: 3,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.70 : 5,222.51 = 2,664.97 : x
  2. Step 2: Convert to fraction form
    3,783.70/5,222.51 = 2,664.97/x
  3. Step 3: Cross multiply
    3,783.70x = 5,222.51 × 2,664.97
  4. Step 4: Simplify right side
    3,783.70x = 13,917,832.47
  5. Step 5: Solve for x
    x = 13,917,832.47/3,783.70
  6. Step 6: Final answer
    x = 3,678.37

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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.