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Finding the Fourth Proportional to 1,669.86, 2,304.48 and 923.76

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Solution

The fourth proportional to 1,669.86, 2,304.48 and 923.76 is: 1,274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.86 : 2,304.48 = 923.76 : x
  2. Step 2: Convert to fraction form
    1,669.86/2,304.48 = 923.76/x
  3. Step 3: Cross multiply
    1,669.86x = 2,304.48 × 923.76
  4. Step 4: Simplify right side
    1,669.86x = 2,128,786.44
  5. Step 5: Solve for x
    x = 2,128,786.44/1,669.86
  6. Step 6: Final answer
    x = 1,274.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.