Home / 1,301.46-1,949.71-1,126.30

Finding the Fourth Proportional to 1,301.46, 1,949.71 and 1,126.30

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Solution

The fourth proportional to 1,301.46, 1,949.71 and 1,126.30 is: 1,687.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.46 : 1,949.71 = 1,126.30 : x
  2. Step 2: Convert to fraction form
    1,301.46/1,949.71 = 1,126.30/x
  3. Step 3: Cross multiply
    1,301.46x = 1,949.71 × 1,126.30
  4. Step 4: Simplify right side
    1,301.46x = 2,195,958.37
  5. Step 5: Solve for x
    x = 2,195,958.37/1,301.46
  6. Step 6: Final answer
    x = 1,687.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.