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Finding the Fourth Proportional to 1,804.22, 2,706.68 and 708.51

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Solution

The fourth proportional to 1,804.22, 2,706.68 and 708.51 is: 1,062.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804.22 : 2,706.68 = 708.51 : x
  2. Step 2: Convert to fraction form
    1,804.22/2,706.68 = 708.51/x
  3. Step 3: Cross multiply
    1,804.22x = 2,706.68 × 708.51
  4. Step 4: Simplify right side
    1,804.22x = 1,917,706.30
  5. Step 5: Solve for x
    x = 1,917,706.30/1,804.22
  6. Step 6: Final answer
    x = 1,062.90

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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.