Home / 3,015.27-4,160.16-2,021.54

Finding the Fourth Proportional to 3,015.27, 4,160.16 and 2,021.54

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Solution

The fourth proportional to 3,015.27, 4,160.16 and 2,021.54 is: 2,789.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.27 : 4,160.16 = 2,021.54 : x
  2. Step 2: Convert to fraction form
    3,015.27/4,160.16 = 2,021.54/x
  3. Step 3: Cross multiply
    3,015.27x = 4,160.16 × 2,021.54
  4. Step 4: Simplify right side
    3,015.27x = 8,409,909.05
  5. Step 5: Solve for x
    x = 8,409,909.05/3,015.27
  6. Step 6: Final answer
    x = 2,789.11

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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.