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Finding the Fourth Proportional to 1,806.84, 2,710.80 and 574.43

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Solution

The fourth proportional to 1,806.84, 2,710.80 and 574.43 is: 861.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.84 : 2,710.80 = 574.43 : x
  2. Step 2: Convert to fraction form
    1,806.84/2,710.80 = 574.43/x
  3. Step 3: Cross multiply
    1,806.84x = 2,710.80 × 574.43
  4. Step 4: Simplify right side
    1,806.84x = 1,557,151.29
  5. Step 5: Solve for x
    x = 1,557,151.29/1,806.84
  6. Step 6: Final answer
    x = 861.81

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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.