Home / 3,074.24-4,243.01-1,815.22

Finding the Fourth Proportional to 3,074.24, 4,243.01 and 1,815.22

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Solution

The fourth proportional to 3,074.24, 4,243.01 and 1,815.22 is: 2,505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.24 : 4,243.01 = 1,815.22 : x
  2. Step 2: Convert to fraction form
    3,074.24/4,243.01 = 1,815.22/x
  3. Step 3: Cross multiply
    3,074.24x = 4,243.01 × 1,815.22
  4. Step 4: Simplify right side
    3,074.24x = 7,701,998.14
  5. Step 5: Solve for x
    x = 7,701,998.14/3,074.24
  6. Step 6: Final answer
    x = 2,505.33

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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.