Home / 2,792.40-4,166.73-2,776.20

Finding the Fourth Proportional to 2,792.40, 4,166.73 and 2,776.20

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Solution

The fourth proportional to 2,792.40, 4,166.73 and 2,776.20 is: 4,142.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.40 : 4,166.73 = 2,776.20 : x
  2. Step 2: Convert to fraction form
    2,792.40/4,166.73 = 2,776.20/x
  3. Step 3: Cross multiply
    2,792.40x = 4,166.73 × 2,776.20
  4. Step 4: Simplify right side
    2,792.40x = 11,567,675.83
  5. Step 5: Solve for x
    x = 11,567,675.83/2,792.40
  6. Step 6: Final answer
    x = 4,142.56

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.