Home / 2,820.26-4,230.66-1,089.02

Finding the Fourth Proportional to 2,820.26, 4,230.66 and 1,089.02

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Solution

The fourth proportional to 2,820.26, 4,230.66 and 1,089.02 is: 1,633.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.26 : 4,230.66 = 1,089.02 : x
  2. Step 2: Convert to fraction form
    2,820.26/4,230.66 = 1,089.02/x
  3. Step 3: Cross multiply
    2,820.26x = 4,230.66 × 1,089.02
  4. Step 4: Simplify right side
    2,820.26x = 4,607,273.35
  5. Step 5: Solve for x
    x = 4,607,273.35/2,820.26
  6. Step 6: Final answer
    x = 1,633.63

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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.