Home / 3,119.78-4,680.75-2,083.94

Finding the Fourth Proportional to 3,119.78, 4,680.75 and 2,083.94

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Solution

The fourth proportional to 3,119.78, 4,680.75 and 2,083.94 is: 3,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.78 : 4,680.75 = 2,083.94 : x
  2. Step 2: Convert to fraction form
    3,119.78/4,680.75 = 2,083.94/x
  3. Step 3: Cross multiply
    3,119.78x = 4,680.75 × 2,083.94
  4. Step 4: Simplify right side
    3,119.78x = 9,754,402.16
  5. Step 5: Solve for x
    x = 9,754,402.16/3,119.78
  6. Step 6: Final answer
    x = 3,126.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.