Home / 2,782.48-4,173.68-1,222.08

Finding the Fourth Proportional to 2,782.48, 4,173.68 and 1,222.08

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Solution

The fourth proportional to 2,782.48, 4,173.68 and 1,222.08 is: 1,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.48 : 4,173.68 = 1,222.08 : x
  2. Step 2: Convert to fraction form
    2,782.48/4,173.68 = 1,222.08/x
  3. Step 3: Cross multiply
    2,782.48x = 4,173.68 × 1,222.08
  4. Step 4: Simplify right side
    2,782.48x = 5,100,570.85
  5. Step 5: Solve for x
    x = 5,100,570.85/2,782.48
  6. Step 6: Final answer
    x = 1,833.10

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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.