Home / 1,433.84-2,150.90-459.71

Finding the Fourth Proportional to 1,433.84, 2,150.90 and 459.71

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Solution

The fourth proportional to 1,433.84, 2,150.90 and 459.71 is: 689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.84 : 2,150.90 = 459.71 : x
  2. Step 2: Convert to fraction form
    1,433.84/2,150.90 = 459.71/x
  3. Step 3: Cross multiply
    1,433.84x = 2,150.90 × 459.71
  4. Step 4: Simplify right side
    1,433.84x = 988,790.24
  5. Step 5: Solve for x
    x = 988,790.24/1,433.84
  6. Step 6: Final answer
    x = 689.61

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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.