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Finding the Fourth Proportional to 1,798.06, 2,691.51 and 974.29

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Solution

The fourth proportional to 1,798.06, 2,691.51 and 974.29 is: 1,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.06 : 2,691.51 = 974.29 : x
  2. Step 2: Convert to fraction form
    1,798.06/2,691.51 = 974.29/x
  3. Step 3: Cross multiply
    1,798.06x = 2,691.51 × 974.29
  4. Step 4: Simplify right side
    1,798.06x = 2,622,297.82
  5. Step 5: Solve for x
    x = 2,622,297.82/1,798.06
  6. Step 6: Final answer
    x = 1,458.41

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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.