Home / 1,622.33-2,433.58-511.90

Finding the Fourth Proportional to 1,622.33, 2,433.58 and 511.90

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Solution

The fourth proportional to 1,622.33, 2,433.58 and 511.90 is: 767.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.33 : 2,433.58 = 511.90 : x
  2. Step 2: Convert to fraction form
    1,622.33/2,433.58 = 511.90/x
  3. Step 3: Cross multiply
    1,622.33x = 2,433.58 × 511.90
  4. Step 4: Simplify right side
    1,622.33x = 1,245,742.24
  5. Step 5: Solve for x
    x = 1,245,742.24/1,622.33
  6. Step 6: Final answer
    x = 767.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.