Home / 3,171.81-4,758.09-1,092.18

Finding the Fourth Proportional to 3,171.81, 4,758.09 and 1,092.18

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Solution

The fourth proportional to 3,171.81, 4,758.09 and 1,092.18 is: 1,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.81 : 4,758.09 = 1,092.18 : x
  2. Step 2: Convert to fraction form
    3,171.81/4,758.09 = 1,092.18/x
  3. Step 3: Cross multiply
    3,171.81x = 4,758.09 × 1,092.18
  4. Step 4: Simplify right side
    3,171.81x = 5,196,690.74
  5. Step 5: Solve for x
    x = 5,196,690.74/3,171.81
  6. Step 6: Final answer
    x = 1,638.40

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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.