Home / 1,299.90-1,958.54-1,176.67

Finding the Fourth Proportional to 1,299.90, 1,958.54 and 1,176.67

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Solution

The fourth proportional to 1,299.90, 1,958.54 and 1,176.67 is: 1,772.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.90 : 1,958.54 = 1,176.67 : x
  2. Step 2: Convert to fraction form
    1,299.90/1,958.54 = 1,176.67/x
  3. Step 3: Cross multiply
    1,299.90x = 1,958.54 × 1,176.67
  4. Step 4: Simplify right side
    1,299.90x = 2,304,553.31
  5. Step 5: Solve for x
    x = 2,304,553.31/1,299.90
  6. Step 6: Final answer
    x = 1,772.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.