Home / 7,739.31-10,680.36-4,202.58

Finding the Fourth Proportional to 7,739.31, 10,680.36 and 4,202.58

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Solution

The fourth proportional to 7,739.31, 10,680.36 and 4,202.58 is: 5,799.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.31 : 10,680.36 = 4,202.58 : x
  2. Step 2: Convert to fraction form
    7,739.31/10,680.36 = 4,202.58/x
  3. Step 3: Cross multiply
    7,739.31x = 10,680.36 × 4,202.58
  4. Step 4: Simplify right side
    7,739.31x = 44,885,067.33
  5. Step 5: Solve for x
    x = 44,885,067.33/7,739.31
  6. Step 6: Final answer
    x = 5,799.62

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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.