Home / 2,830.05-4,241.90-1,329.81

Finding the Fourth Proportional to 2,830.05, 4,241.90 and 1,329.81

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Solution

The fourth proportional to 2,830.05, 4,241.90 and 1,329.81 is: 1,993.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.05 : 4,241.90 = 1,329.81 : x
  2. Step 2: Convert to fraction form
    2,830.05/4,241.90 = 1,329.81/x
  3. Step 3: Cross multiply
    2,830.05x = 4,241.90 × 1,329.81
  4. Step 4: Simplify right side
    2,830.05x = 5,640,908.90
  5. Step 5: Solve for x
    x = 5,640,908.90/2,830.05
  6. Step 6: Final answer
    x = 1,993.22

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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.