Home / 6,239.31-8,616.32-3,882.51

Finding the Fourth Proportional to 6,239.31, 8,616.32 and 3,882.51

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Solution

The fourth proportional to 6,239.31, 8,616.32 and 3,882.51 is: 5,361.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.31 : 8,616.32 = 3,882.51 : x
  2. Step 2: Convert to fraction form
    6,239.31/8,616.32 = 3,882.51/x
  3. Step 3: Cross multiply
    6,239.31x = 8,616.32 × 3,882.51
  4. Step 4: Simplify right side
    6,239.31x = 33,452,929.15
  5. Step 5: Solve for x
    x = 33,452,929.15/6,239.31
  6. Step 6: Final answer
    x = 5,361.64

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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.