Home / 2,287.22-3,431.28-1,054.70

Finding the Fourth Proportional to 2,287.22, 3,431.28 and 1,054.70

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Solution

The fourth proportional to 2,287.22, 3,431.28 and 1,054.70 is: 1,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,287.22 : 3,431.28 = 1,054.70 : x
  2. Step 2: Convert to fraction form
    2,287.22/3,431.28 = 1,054.70/x
  3. Step 3: Cross multiply
    2,287.22x = 3,431.28 × 1,054.70
  4. Step 4: Simplify right side
    2,287.22x = 3,618,971.02
  5. Step 5: Solve for x
    x = 3,618,971.02/2,287.22
  6. Step 6: Final answer
    x = 1,582.26

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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.