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Finding the Fourth Proportional to 1,804.80, 2,703.42 and 936.48

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Solution

The fourth proportional to 1,804.80, 2,703.42 and 936.48 is: 1,402.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804.80 : 2,703.42 = 936.48 : x
  2. Step 2: Convert to fraction form
    1,804.80/2,703.42 = 936.48/x
  3. Step 3: Cross multiply
    1,804.80x = 2,703.42 × 936.48
  4. Step 4: Simplify right side
    1,804.80x = 2,531,698.76
  5. Step 5: Solve for x
    x = 2,531,698.76/1,804.80
  6. Step 6: Final answer
    x = 1,402.76

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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.