Home / 2,825.40-4,235.52-1,092.72

Finding the Fourth Proportional to 2,825.40, 4,235.52 and 1,092.72

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Solution

The fourth proportional to 2,825.40, 4,235.52 and 1,092.72 is: 1,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.40 : 4,235.52 = 1,092.72 : x
  2. Step 2: Convert to fraction form
    2,825.40/4,235.52 = 1,092.72/x
  3. Step 3: Cross multiply
    2,825.40x = 4,235.52 × 1,092.72
  4. Step 4: Simplify right side
    2,825.40x = 4,628,237.41
  5. Step 5: Solve for x
    x = 4,628,237.41/2,825.40
  6. Step 6: Final answer
    x = 1,638.08

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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.