Home / 3,663.23-5,491.19-1,815.67

Finding the Fourth Proportional to 3,663.23, 5,491.19 and 1,815.67

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Solution

The fourth proportional to 3,663.23, 5,491.19 and 1,815.67 is: 2,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,663.23 : 5,491.19 = 1,815.67 : x
  2. Step 2: Convert to fraction form
    3,663.23/5,491.19 = 1,815.67/x
  3. Step 3: Cross multiply
    3,663.23x = 5,491.19 × 1,815.67
  4. Step 4: Simplify right side
    3,663.23x = 9,970,169.46
  5. Step 5: Solve for x
    x = 9,970,169.46/3,663.23
  6. Step 6: Final answer
    x = 2,721.69

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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.