Home / 3,259.36-4,879.71-2,161.54

Finding the Fourth Proportional to 3,259.36, 4,879.71 and 2,161.54

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Solution

The fourth proportional to 3,259.36, 4,879.71 and 2,161.54 is: 3,236.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.36 : 4,879.71 = 2,161.54 : x
  2. Step 2: Convert to fraction form
    3,259.36/4,879.71 = 2,161.54/x
  3. Step 3: Cross multiply
    3,259.36x = 4,879.71 × 2,161.54
  4. Step 4: Simplify right side
    3,259.36x = 10,547,663.95
  5. Step 5: Solve for x
    x = 10,547,663.95/3,259.36
  6. Step 6: Final answer
    x = 3,236.12

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1.5x scale

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.