Home / 3,177.40-4,760.70-2,021.80

Finding the Fourth Proportional to 3,177.40, 4,760.70 and 2,021.80

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Solution

The fourth proportional to 3,177.40, 4,760.70 and 2,021.80 is: 3,029.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.40 : 4,760.70 = 2,021.80 : x
  2. Step 2: Convert to fraction form
    3,177.40/4,760.70 = 2,021.80/x
  3. Step 3: Cross multiply
    3,177.40x = 4,760.70 × 2,021.80
  4. Step 4: Simplify right side
    3,177.40x = 9,625,183.26
  5. Step 5: Solve for x
    x = 9,625,183.26/3,177.40
  6. Step 6: Final answer
    x = 3,029.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.