Home / 5,177.28-7,767.43-1,667.21

Finding the Fourth Proportional to 5,177.28, 7,767.43 and 1,667.21

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Solution

The fourth proportional to 5,177.28, 7,767.43 and 1,667.21 is: 2,501.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.28 : 7,767.43 = 1,667.21 : x
  2. Step 2: Convert to fraction form
    5,177.28/7,767.43 = 1,667.21/x
  3. Step 3: Cross multiply
    5,177.28x = 7,767.43 × 1,667.21
  4. Step 4: Simplify right side
    5,177.28x = 12,949,893.97
  5. Step 5: Solve for x
    x = 12,949,893.97/5,177.28
  6. Step 6: Final answer
    x = 2,501.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.