Home / 6,983.78-9,637.74-3,839.94

Finding the Fourth Proportional to 6,983.78, 9,637.74 and 3,839.94

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Solution

The fourth proportional to 6,983.78, 9,637.74 and 3,839.94 is: 5,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,983.78 : 9,637.74 = 3,839.94 : x
  2. Step 2: Convert to fraction form
    6,983.78/9,637.74 = 3,839.94/x
  3. Step 3: Cross multiply
    6,983.78x = 9,637.74 × 3,839.94
  4. Step 4: Simplify right side
    6,983.78x = 37,008,343.34
  5. Step 5: Solve for x
    x = 37,008,343.34/6,983.78
  6. Step 6: Final answer
    x = 5,299.19

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Why These Related Problems?

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