Home / 1,433.22-2,150.18-459.34

Finding the Fourth Proportional to 1,433.22, 2,150.18 and 459.34

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Solution

The fourth proportional to 1,433.22, 2,150.18 and 459.34 is: 689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.22 : 2,150.18 = 459.34 : x
  2. Step 2: Convert to fraction form
    1,433.22/2,150.18 = 459.34/x
  3. Step 3: Cross multiply
    1,433.22x = 2,150.18 × 459.34
  4. Step 4: Simplify right side
    1,433.22x = 987,663.68
  5. Step 5: Solve for x
    x = 987,663.68/1,433.22
  6. Step 6: Final answer
    x = 689.12

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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.