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Finding the Fourth Proportional to 2,991.57, 4,486.23 and 1,347.27

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Solution

The fourth proportional to 2,991.57, 4,486.23 and 1,347.27 is: 2,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.57 : 4,486.23 = 1,347.27 : x
  2. Step 2: Convert to fraction form
    2,991.57/4,486.23 = 1,347.27/x
  3. Step 3: Cross multiply
    2,991.57x = 4,486.23 × 1,347.27
  4. Step 4: Simplify right side
    2,991.57x = 6,044,163.09
  5. Step 5: Solve for x
    x = 6,044,163.09/2,991.57
  6. Step 6: Final answer
    x = 2,020.40

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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.