Home / 1,912.48-2,852.30-1,879.68

Finding the Fourth Proportional to 1,912.48, 2,852.30 and 1,879.68

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Solution

The fourth proportional to 1,912.48, 2,852.30 and 1,879.68 is: 2,803.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.48 : 2,852.30 = 1,879.68 : x
  2. Step 2: Convert to fraction form
    1,912.48/2,852.30 = 1,879.68/x
  3. Step 3: Cross multiply
    1,912.48x = 2,852.30 × 1,879.68
  4. Step 4: Simplify right side
    1,912.48x = 5,361,411.26
  5. Step 5: Solve for x
    x = 5,361,411.26/1,912.48
  6. Step 6: Final answer
    x = 2,803.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.