Home / 1,446.21-2,168.60-666.18

Finding the Fourth Proportional to 1,446.21, 2,168.60 and 666.18

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Solution

The fourth proportional to 1,446.21, 2,168.60 and 666.18 is: 998.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.21 : 2,168.60 = 666.18 : x
  2. Step 2: Convert to fraction form
    1,446.21/2,168.60 = 666.18/x
  3. Step 3: Cross multiply
    1,446.21x = 2,168.60 × 666.18
  4. Step 4: Simplify right side
    1,446.21x = 1,444,674.62
  5. Step 5: Solve for x
    x = 1,444,674.62/1,446.21
  6. Step 6: Final answer
    x = 998.94

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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.