Home / 1,558.82-2,151.14-850.67

Finding the Fourth Proportional to 1,558.82, 2,151.14 and 850.67

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Solution

The fourth proportional to 1,558.82, 2,151.14 and 850.67 is: 1,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.82 : 2,151.14 = 850.67 : x
  2. Step 2: Convert to fraction form
    1,558.82/2,151.14 = 850.67/x
  3. Step 3: Cross multiply
    1,558.82x = 2,151.14 × 850.67
  4. Step 4: Simplify right side
    1,558.82x = 1,829,910.26
  5. Step 5: Solve for x
    x = 1,829,910.26/1,558.82
  6. Step 6: Final answer
    x = 1,173.91

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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.