Home / 6,983.75-9,637.62-3,840.05

Finding the Fourth Proportional to 6,983.75, 9,637.62 and 3,840.05

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Solution

The fourth proportional to 6,983.75, 9,637.62 and 3,840.05 is: 5,299.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,983.75 : 9,637.62 = 3,840.05 : x
  2. Step 2: Convert to fraction form
    6,983.75/9,637.62 = 3,840.05/x
  3. Step 3: Cross multiply
    6,983.75x = 9,637.62 × 3,840.05
  4. Step 4: Simplify right side
    6,983.75x = 37,008,942.68
  5. Step 5: Solve for x
    x = 37,008,942.68/6,983.75
  6. Step 6: Final answer
    x = 5,299.29

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1.5x scale

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.