Home / 1,446.31-2,169.23-666.28

Finding the Fourth Proportional to 1,446.31, 2,169.23 and 666.28

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Solution

The fourth proportional to 1,446.31, 2,169.23 and 666.28 is: 999.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,446.31 : 2,169.23 = 666.28 : x
  2. Step 2: Convert to fraction form
    1,446.31/2,169.23 = 666.28/x
  3. Step 3: Cross multiply
    1,446.31x = 2,169.23 × 666.28
  4. Step 4: Simplify right side
    1,446.31x = 1,445,313.94
  5. Step 5: Solve for x
    x = 1,445,313.94/1,446.31
  6. Step 6: Final answer
    x = 999.31

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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.