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Finding the Fourth Proportional to 1,805.73, 2,708.38 and 573.13

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Solution

The fourth proportional to 1,805.73, 2,708.38 and 573.13 is: 859.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.73 : 2,708.38 = 573.13 : x
  2. Step 2: Convert to fraction form
    1,805.73/2,708.38 = 573.13/x
  3. Step 3: Cross multiply
    1,805.73x = 2,708.38 × 573.13
  4. Step 4: Simplify right side
    1,805.73x = 1,552,253.83
  5. Step 5: Solve for x
    x = 1,552,253.83/1,805.73
  6. Step 6: Final answer
    x = 859.63

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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.