Home / 4,815.10-7,215.90-3,829.60

Finding the Fourth Proportional to 4,815.10, 7,215.90 and 3,829.60

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Solution

The fourth proportional to 4,815.10, 7,215.90 and 3,829.60 is: 5,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.10 : 7,215.90 = 3,829.60 : x
  2. Step 2: Convert to fraction form
    4,815.10/7,215.90 = 3,829.60/x
  3. Step 3: Cross multiply
    4,815.10x = 7,215.90 × 3,829.60
  4. Step 4: Simplify right side
    4,815.10x = 27,634,010.64
  5. Step 5: Solve for x
    x = 27,634,010.64/4,815.10
  6. Step 6: Final answer
    x = 5,739.03

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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.