Home / 3,485.67-5,220.42-3,459.75

Finding the Fourth Proportional to 3,485.67, 5,220.42 and 3,459.75

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Solution

The fourth proportional to 3,485.67, 5,220.42 and 3,459.75 is: 5,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.67 : 5,220.42 = 3,459.75 : x
  2. Step 2: Convert to fraction form
    3,485.67/5,220.42 = 3,459.75/x
  3. Step 3: Cross multiply
    3,485.67x = 5,220.42 × 3,459.75
  4. Step 4: Simplify right side
    3,485.67x = 18,061,315.54
  5. Step 5: Solve for x
    x = 18,061,315.54/3,485.67
  6. Step 6: Final answer
    x = 5,181.60

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1.5x scale

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.