Home / 3,688.21-5,529.42-2,515.29

Finding the Fourth Proportional to 3,688.21, 5,529.42 and 2,515.29

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Solution

The fourth proportional to 3,688.21, 5,529.42 and 2,515.29 is: 3,770.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.21 : 5,529.42 = 2,515.29 : x
  2. Step 2: Convert to fraction form
    3,688.21/5,529.42 = 2,515.29/x
  3. Step 3: Cross multiply
    3,688.21x = 5,529.42 × 2,515.29
  4. Step 4: Simplify right side
    3,688.21x = 13,908,082.26
  5. Step 5: Solve for x
    x = 13,908,082.26/3,688.21
  6. Step 6: Final answer
    x = 3,770.96

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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.