Home / 1,519.32-2,096.62-890.22

Finding the Fourth Proportional to 1,519.32, 2,096.62 and 890.22

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Solution

The fourth proportional to 1,519.32, 2,096.62 and 890.22 is: 1,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.32 : 2,096.62 = 890.22 : x
  2. Step 2: Convert to fraction form
    1,519.32/2,096.62 = 890.22/x
  3. Step 3: Cross multiply
    1,519.32x = 2,096.62 × 890.22
  4. Step 4: Simplify right side
    1,519.32x = 1,866,453.06
  5. Step 5: Solve for x
    x = 1,866,453.06/1,519.32
  6. Step 6: Final answer
    x = 1,228.48

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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.