Home / 3,623.72-5,433-1,515.28

Finding the Fourth Proportional to 3,623.72, 5,433 and 1,515.28

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Solution

The fourth proportional to 3,623.72, 5,433 and 1,515.28 is: 2,271.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.72 : 5,433 = 1,515.28 : x
  2. Step 2: Convert to fraction form
    3,623.72/5,433 = 1,515.28/x
  3. Step 3: Cross multiply
    3,623.72x = 5,433 × 1,515.28
  4. Step 4: Simplify right side
    3,623.72x = 8,232,516.24
  5. Step 5: Solve for x
    x = 8,232,516.24/3,623.72
  6. Step 6: Final answer
    x = 2,271.84

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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.