Home / 2,830.26-4,243.43-1,248.21

Finding the Fourth Proportional to 2,830.26, 4,243.43 and 1,248.21

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Solution

The fourth proportional to 2,830.26, 4,243.43 and 1,248.21 is: 1,871.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.26 : 4,243.43 = 1,248.21 : x
  2. Step 2: Convert to fraction form
    2,830.26/4,243.43 = 1,248.21/x
  3. Step 3: Cross multiply
    2,830.26x = 4,243.43 × 1,248.21
  4. Step 4: Simplify right side
    2,830.26x = 5,296,670.54
  5. Step 5: Solve for x
    x = 5,296,670.54/2,830.26
  6. Step 6: Final answer
    x = 1,871.44

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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.