Home / 2,828.26-3,902.82-1,663.12

Finding the Fourth Proportional to 2,828.26, 3,902.82 and 1,663.12

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Solution

The fourth proportional to 2,828.26, 3,902.82 and 1,663.12 is: 2,295.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.26 : 3,902.82 = 1,663.12 : x
  2. Step 2: Convert to fraction form
    2,828.26/3,902.82 = 1,663.12/x
  3. Step 3: Cross multiply
    2,828.26x = 3,902.82 × 1,663.12
  4. Step 4: Simplify right side
    2,828.26x = 6,490,858.00
  5. Step 5: Solve for x
    x = 6,490,858.00/2,828.26
  6. Step 6: Final answer
    x = 2,295.00

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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.