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Finding the Fourth Proportional to 1,879.51, 2,593.73 and 1,040.20

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Solution

The fourth proportional to 1,879.51, 2,593.73 and 1,040.20 is: 1,435.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879.51 : 2,593.73 = 1,040.20 : x
  2. Step 2: Convert to fraction form
    1,879.51/2,593.73 = 1,040.20/x
  3. Step 3: Cross multiply
    1,879.51x = 2,593.73 × 1,040.20
  4. Step 4: Simplify right side
    1,879.51x = 2,697,997.95
  5. Step 5: Solve for x
    x = 2,697,997.95/1,879.51
  6. Step 6: Final answer
    x = 1,435.48

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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.