Home / 5,181.67-7,150.71-2,823.81

Finding the Fourth Proportional to 5,181.67, 7,150.71 and 2,823.81

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Solution

The fourth proportional to 5,181.67, 7,150.71 and 2,823.81 is: 3,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.67 : 7,150.71 = 2,823.81 : x
  2. Step 2: Convert to fraction form
    5,181.67/7,150.71 = 2,823.81/x
  3. Step 3: Cross multiply
    5,181.67x = 7,150.71 × 2,823.81
  4. Step 4: Simplify right side
    5,181.67x = 20,192,217.11
  5. Step 5: Solve for x
    x = 20,192,217.11/5,181.67
  6. Step 6: Final answer
    x = 3,896.86

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1.5x scale

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.