Home / 7,581.19-11,372.81-2,649.67

Finding the Fourth Proportional to 7,581.19, 11,372.81 and 2,649.67

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Solution

The fourth proportional to 7,581.19, 11,372.81 and 2,649.67 is: 3,974.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.19 : 11,372.81 = 2,649.67 : x
  2. Step 2: Convert to fraction form
    7,581.19/11,372.81 = 2,649.67/x
  3. Step 3: Cross multiply
    7,581.19x = 11,372.81 × 2,649.67
  4. Step 4: Simplify right side
    7,581.19x = 30,134,193.47
  5. Step 5: Solve for x
    x = 30,134,193.47/7,581.19
  6. Step 6: Final answer
    x = 3,974.86

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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.