Home / 4,015.68-5,543.38-3,021.20

Finding the Fourth Proportional to 4,015.68, 5,543.38 and 3,021.20

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Solution

The fourth proportional to 4,015.68, 5,543.38 and 3,021.20 is: 4,170.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,015.68 : 5,543.38 = 3,021.20 : x
  2. Step 2: Convert to fraction form
    4,015.68/5,543.38 = 3,021.20/x
  3. Step 3: Cross multiply
    4,015.68x = 5,543.38 × 3,021.20
  4. Step 4: Simplify right side
    4,015.68x = 16,747,687.68
  5. Step 5: Solve for x
    x = 16,747,687.68/4,015.68
  6. Step 6: Final answer
    x = 4,170.57

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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.