Home / 2,253.21-3,379.81-1,020.39

Finding the Fourth Proportional to 2,253.21, 3,379.81 and 1,020.39

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Solution

The fourth proportional to 2,253.21, 3,379.81 and 1,020.39 is: 1,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.21 : 3,379.81 = 1,020.39 : x
  2. Step 2: Convert to fraction form
    2,253.21/3,379.81 = 1,020.39/x
  3. Step 3: Cross multiply
    2,253.21x = 3,379.81 × 1,020.39
  4. Step 4: Simplify right side
    2,253.21x = 3,448,724.33
  5. Step 5: Solve for x
    x = 3,448,724.33/2,253.21
  6. Step 6: Final answer
    x = 1,530.58

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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.