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Finding the Fourth Proportional to 2,287.39, 3,431.90 and 899.96

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Solution

The fourth proportional to 2,287.39, 3,431.90 and 899.96 is: 1,350.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.39 : 3,431.90 = 899.96 : x
  2. Step 2: Convert to fraction form
    2,287.39/3,431.90 = 899.96/x
  3. Step 3: Cross multiply
    2,287.39x = 3,431.90 × 899.96
  4. Step 4: Simplify right side
    2,287.39x = 3,088,557.81
  5. Step 5: Solve for x
    x = 3,088,557.81/2,287.39
  6. Step 6: Final answer
    x = 1,350.26

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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.