Home / 2,083.72-2,876.98-1,298.12

Finding the Fourth Proportional to 2,083.72, 2,876.98 and 1,298.12

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Solution

The fourth proportional to 2,083.72, 2,876.98 and 1,298.12 is: 1,792.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.72 : 2,876.98 = 1,298.12 : x
  2. Step 2: Convert to fraction form
    2,083.72/2,876.98 = 1,298.12/x
  3. Step 3: Cross multiply
    2,083.72x = 2,876.98 × 1,298.12
  4. Step 4: Simplify right side
    2,083.72x = 3,734,665.28
  5. Step 5: Solve for x
    x = 3,734,665.28/2,083.72
  6. Step 6: Final answer
    x = 1,792.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.