Home / 3,816.30-5,266.89-3,072.72

Finding the Fourth Proportional to 3,816.30, 5,266.89 and 3,072.72

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Solution

The fourth proportional to 3,816.30, 5,266.89 and 3,072.72 is: 4,240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.30 : 5,266.89 = 3,072.72 : x
  2. Step 2: Convert to fraction form
    3,816.30/5,266.89 = 3,072.72/x
  3. Step 3: Cross multiply
    3,816.30x = 5,266.89 × 3,072.72
  4. Step 4: Simplify right side
    3,816.30x = 16,183,678.24
  5. Step 5: Solve for x
    x = 16,183,678.24/3,816.30
  6. Step 6: Final answer
    x = 4,240.67

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1.5x scale

Why These Related Problems?

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