Home / 2,786.51-3,845.27-1,666.79

Finding the Fourth Proportional to 2,786.51, 3,845.27 and 1,666.79

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Solution

The fourth proportional to 2,786.51, 3,845.27 and 1,666.79 is: 2,300.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.51 : 3,845.27 = 1,666.79 : x
  2. Step 2: Convert to fraction form
    2,786.51/3,845.27 = 1,666.79/x
  3. Step 3: Cross multiply
    2,786.51x = 3,845.27 × 1,666.79
  4. Step 4: Simplify right side
    2,786.51x = 6,409,230.02
  5. Step 5: Solve for x
    x = 6,409,230.02/2,786.51
  6. Step 6: Final answer
    x = 2,300.09

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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.