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Finding the Fourth Proportional to 1,806.71, 2,710.37 and 574.03

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Solution

The fourth proportional to 1,806.71, 2,710.37 and 574.03 is: 861.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.71 : 2,710.37 = 574.03 : x
  2. Step 2: Convert to fraction form
    1,806.71/2,710.37 = 574.03/x
  3. Step 3: Cross multiply
    1,806.71x = 2,710.37 × 574.03
  4. Step 4: Simplify right side
    1,806.71x = 1,555,828.35
  5. Step 5: Solve for x
    x = 1,555,828.35/1,806.71
  6. Step 6: Final answer
    x = 861.14

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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.