Home / 3,181.72-4,771.95-1,073.11

Finding the Fourth Proportional to 3,181.72, 4,771.95 and 1,073.11

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Solution

The fourth proportional to 3,181.72, 4,771.95 and 1,073.11 is: 1,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.72 : 4,771.95 = 1,073.11 : x
  2. Step 2: Convert to fraction form
    3,181.72/4,771.95 = 1,073.11/x
  3. Step 3: Cross multiply
    3,181.72x = 4,771.95 × 1,073.11
  4. Step 4: Simplify right side
    3,181.72x = 5,120,827.26
  5. Step 5: Solve for x
    x = 5,120,827.26/3,181.72
  6. Step 6: Final answer
    x = 1,609.45

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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.