Home / 3,680.85-5,521.26-1,491.11

Finding the Fourth Proportional to 3,680.85, 5,521.26 and 1,491.11

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Solution

The fourth proportional to 3,680.85, 5,521.26 and 1,491.11 is: 2,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.85 : 5,521.26 = 1,491.11 : x
  2. Step 2: Convert to fraction form
    3,680.85/5,521.26 = 1,491.11/x
  3. Step 3: Cross multiply
    3,680.85x = 5,521.26 × 1,491.11
  4. Step 4: Simplify right side
    3,680.85x = 8,232,835.75
  5. Step 5: Solve for x
    x = 8,232,835.75/3,680.85
  6. Step 6: Final answer
    x = 2,236.67

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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.