Home / 5,181.51-7,150.48-2,823.65

Finding the Fourth Proportional to 5,181.51, 7,150.48 and 2,823.65

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Solution

The fourth proportional to 5,181.51, 7,150.48 and 2,823.65 is: 3,896.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.51 : 7,150.48 = 2,823.65 : x
  2. Step 2: Convert to fraction form
    5,181.51/7,150.48 = 2,823.65/x
  3. Step 3: Cross multiply
    5,181.51x = 7,150.48 × 2,823.65
  4. Step 4: Simplify right side
    5,181.51x = 20,190,438.73
  5. Step 5: Solve for x
    x = 20,190,438.73/5,181.51
  6. Step 6: Final answer
    x = 3,896.63

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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.