Home / 5,146.62-7,102.38-3,021.60

Finding the Fourth Proportional to 5,146.62, 7,102.38 and 3,021.60

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Solution

The fourth proportional to 5,146.62, 7,102.38 and 3,021.60 is: 4,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.62 : 7,102.38 = 3,021.60 : x
  2. Step 2: Convert to fraction form
    5,146.62/7,102.38 = 3,021.60/x
  3. Step 3: Cross multiply
    5,146.62x = 7,102.38 × 3,021.60
  4. Step 4: Simplify right side
    5,146.62x = 21,460,551.41
  5. Step 5: Solve for x
    x = 21,460,551.41/5,146.62
  6. Step 6: Final answer
    x = 4,169.83

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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.