Home / 1,948.15-2,908.36-1,879.81

Finding the Fourth Proportional to 1,948.15, 2,908.36 and 1,879.81

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Solution

The fourth proportional to 1,948.15, 2,908.36 and 1,879.81 is: 2,806.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.15 : 2,908.36 = 1,879.81 : x
  2. Step 2: Convert to fraction form
    1,948.15/2,908.36 = 1,879.81/x
  3. Step 3: Cross multiply
    1,948.15x = 2,908.36 × 1,879.81
  4. Step 4: Simplify right side
    1,948.15x = 5,467,164.21
  5. Step 5: Solve for x
    x = 5,467,164.21/1,948.15
  6. Step 6: Final answer
    x = 2,806.34

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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.