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Finding the Fourth Proportional to 2,692.75, 3,716.15 and 1,513.90

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Solution

The fourth proportional to 2,692.75, 3,716.15 and 1,513.90 is: 2,089.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.75 : 3,716.15 = 1,513.90 : x
  2. Step 2: Convert to fraction form
    2,692.75/3,716.15 = 1,513.90/x
  3. Step 3: Cross multiply
    2,692.75x = 3,716.15 × 1,513.90
  4. Step 4: Simplify right side
    2,692.75x = 5,625,853.33
  5. Step 5: Solve for x
    x = 5,625,853.33/2,692.75
  6. Step 6: Final answer
    x = 2,089.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.