Home / 5,181.24-7,149.66-2,942.36

Finding the Fourth Proportional to 5,181.24, 7,149.66 and 2,942.36

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Solution

The fourth proportional to 5,181.24, 7,149.66 and 2,942.36 is: 4,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.24 : 7,149.66 = 2,942.36 : x
  2. Step 2: Convert to fraction form
    5,181.24/7,149.66 = 2,942.36/x
  3. Step 3: Cross multiply
    5,181.24x = 7,149.66 × 2,942.36
  4. Step 4: Simplify right side
    5,181.24x = 21,036,873.60
  5. Step 5: Solve for x
    x = 21,036,873.60/5,181.24
  6. Step 6: Final answer
    x = 4,060.20

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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.