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Finding the Fourth Proportional to 1,790.22, 2,667.78 and 1,731.51

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Solution

The fourth proportional to 1,790.22, 2,667.78 and 1,731.51 is: 2,580.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.22 : 2,667.78 = 1,731.51 : x
  2. Step 2: Convert to fraction form
    1,790.22/2,667.78 = 1,731.51/x
  3. Step 3: Cross multiply
    1,790.22x = 2,667.78 × 1,731.51
  4. Step 4: Simplify right side
    1,790.22x = 4,619,287.75
  5. Step 5: Solve for x
    x = 4,619,287.75/1,790.22
  6. Step 6: Final answer
    x = 2,580.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.