Home / 3,218.03-4,829.78-1,271.60

Finding the Fourth Proportional to 3,218.03, 4,829.78 and 1,271.60

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Solution

The fourth proportional to 3,218.03, 4,829.78 and 1,271.60 is: 1,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.03 : 4,829.78 = 1,271.60 : x
  2. Step 2: Convert to fraction form
    3,218.03/4,829.78 = 1,271.60/x
  3. Step 3: Cross multiply
    3,218.03x = 4,829.78 × 1,271.60
  4. Step 4: Simplify right side
    3,218.03x = 6,141,563.50
  5. Step 5: Solve for x
    x = 6,141,563.50/3,218.03
  6. Step 6: Final answer
    x = 1,908.48

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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.