Home / 5,629.72-8,445.60-2,820.02

Finding the Fourth Proportional to 5,629.72, 8,445.60 and 2,820.02

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Solution

The fourth proportional to 5,629.72, 8,445.60 and 2,820.02 is: 4,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,629.72 : 8,445.60 = 2,820.02 : x
  2. Step 2: Convert to fraction form
    5,629.72/8,445.60 = 2,820.02/x
  3. Step 3: Cross multiply
    5,629.72x = 8,445.60 × 2,820.02
  4. Step 4: Simplify right side
    5,629.72x = 23,816,760.91
  5. Step 5: Solve for x
    x = 23,816,760.91/5,629.72
  6. Step 6: Final answer
    x = 4,230.54

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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.