Home / 3,475.85-5,213.48-1,284.60

Finding the Fourth Proportional to 3,475.85, 5,213.48 and 1,284.60

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Solution

The fourth proportional to 3,475.85, 5,213.48 and 1,284.60 is: 1,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,475.85 : 5,213.48 = 1,284.60 : x
  2. Step 2: Convert to fraction form
    3,475.85/5,213.48 = 1,284.60/x
  3. Step 3: Cross multiply
    3,475.85x = 5,213.48 × 1,284.60
  4. Step 4: Simplify right side
    3,475.85x = 6,697,229.99
  5. Step 5: Solve for x
    x = 6,697,229.99/3,475.85
  6. Step 6: Final answer
    x = 1,926.79

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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.