Home / 2,181.99-3,012.66-1,343.79

Finding the Fourth Proportional to 2,181.99, 3,012.66 and 1,343.79

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Solution

The fourth proportional to 2,181.99, 3,012.66 and 1,343.79 is: 1,855.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.99 : 3,012.66 = 1,343.79 : x
  2. Step 2: Convert to fraction form
    2,181.99/3,012.66 = 1,343.79/x
  3. Step 3: Cross multiply
    2,181.99x = 3,012.66 × 1,343.79
  4. Step 4: Simplify right side
    2,181.99x = 4,048,382.38
  5. Step 5: Solve for x
    x = 4,048,382.38/2,181.99
  6. Step 6: Final answer
    x = 1,855.36

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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.