Home / 1,433.84-2,150.67-664.34

Finding the Fourth Proportional to 1,433.84, 2,150.67 and 664.34

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Solution

The fourth proportional to 1,433.84, 2,150.67 and 664.34 is: 996.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.84 : 2,150.67 = 664.34 : x
  2. Step 2: Convert to fraction form
    1,433.84/2,150.67 = 664.34/x
  3. Step 3: Cross multiply
    1,433.84x = 2,150.67 × 664.34
  4. Step 4: Simplify right side
    1,433.84x = 1,428,776.11
  5. Step 5: Solve for x
    x = 1,428,776.11/1,433.84
  6. Step 6: Final answer
    x = 996.47

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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.