Home / 1,429.12-2,142.42-941.14

Finding the Fourth Proportional to 1,429.12, 2,142.42 and 941.14

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Solution

The fourth proportional to 1,429.12, 2,142.42 and 941.14 is: 1,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.12 : 2,142.42 = 941.14 : x
  2. Step 2: Convert to fraction form
    1,429.12/2,142.42 = 941.14/x
  3. Step 3: Cross multiply
    1,429.12x = 2,142.42 × 941.14
  4. Step 4: Simplify right side
    1,429.12x = 2,016,317.16
  5. Step 5: Solve for x
    x = 2,016,317.16/1,429.12
  6. Step 6: Final answer
    x = 1,410.88

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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.