Home / 1,428.44-2,146.25-908.67

Finding the Fourth Proportional to 1,428.44, 2,146.25 and 908.67

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Solution

The fourth proportional to 1,428.44, 2,146.25 and 908.67 is: 1,365.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428.44 : 2,146.25 = 908.67 : x
  2. Step 2: Convert to fraction form
    1,428.44/2,146.25 = 908.67/x
  3. Step 3: Cross multiply
    1,428.44x = 2,146.25 × 908.67
  4. Step 4: Simplify right side
    1,428.44x = 1,950,226.12
  5. Step 5: Solve for x
    x = 1,950,226.12/1,428.44
  6. Step 6: Final answer
    x = 1,365.29

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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.