Home / 3,005.97-4,148.36-1,679.60

Finding the Fourth Proportional to 3,005.97, 4,148.36 and 1,679.60

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Solution

The fourth proportional to 3,005.97, 4,148.36 and 1,679.60 is: 2,317.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.97 : 4,148.36 = 1,679.60 : x
  2. Step 2: Convert to fraction form
    3,005.97/4,148.36 = 1,679.60/x
  3. Step 3: Cross multiply
    3,005.97x = 4,148.36 × 1,679.60
  4. Step 4: Simplify right side
    3,005.97x = 6,967,556.32
  5. Step 5: Solve for x
    x = 6,967,556.32/3,005.97
  6. Step 6: Final answer
    x = 2,317.91

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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.