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Finding the Fourth Proportional to 2,692.79, 3,715.61 and 1,513.62

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Solution

The fourth proportional to 2,692.79, 3,715.61 and 1,513.62 is: 2,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.79 : 3,715.61 = 1,513.62 : x
  2. Step 2: Convert to fraction form
    2,692.79/3,715.61 = 1,513.62/x
  3. Step 3: Cross multiply
    2,692.79x = 3,715.61 × 1,513.62
  4. Step 4: Simplify right side
    2,692.79x = 5,624,014.04
  5. Step 5: Solve for x
    x = 5,624,014.04/2,692.79
  6. Step 6: Final answer
    x = 2,088.55

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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.