Home / 3,769.48-5,653.44-1,428.67

Finding the Fourth Proportional to 3,769.48, 5,653.44 and 1,428.67

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Solution

The fourth proportional to 3,769.48, 5,653.44 and 1,428.67 is: 2,142.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.48 : 5,653.44 = 1,428.67 : x
  2. Step 2: Convert to fraction form
    3,769.48/5,653.44 = 1,428.67/x
  3. Step 3: Cross multiply
    3,769.48x = 5,653.44 × 1,428.67
  4. Step 4: Simplify right side
    3,769.48x = 8,076,900.12
  5. Step 5: Solve for x
    x = 8,076,900.12/3,769.48
  6. Step 6: Final answer
    x = 2,142.71

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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.