Home / 5,648.40-7,794.60-3,290.16

Finding the Fourth Proportional to 5,648.40, 7,794.60 and 3,290.16

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Solution

The fourth proportional to 5,648.40, 7,794.60 and 3,290.16 is: 4,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.40 : 7,794.60 = 3,290.16 : x
  2. Step 2: Convert to fraction form
    5,648.40/7,794.60 = 3,290.16/x
  3. Step 3: Cross multiply
    5,648.40x = 7,794.60 × 3,290.16
  4. Step 4: Simplify right side
    5,648.40x = 25,645,481.14
  5. Step 5: Solve for x
    x = 25,645,481.14/5,648.40
  6. Step 6: Final answer
    x = 4,540.31

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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.