Home / 3,520.14-5,280.24-1,211.64

Finding the Fourth Proportional to 3,520.14, 5,280.24 and 1,211.64

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Solution

The fourth proportional to 3,520.14, 5,280.24 and 1,211.64 is: 1,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.14 : 5,280.24 = 1,211.64 : x
  2. Step 2: Convert to fraction form
    3,520.14/5,280.24 = 1,211.64/x
  3. Step 3: Cross multiply
    3,520.14x = 5,280.24 × 1,211.64
  4. Step 4: Simplify right side
    3,520.14x = 6,397,749.99
  5. Step 5: Solve for x
    x = 6,397,749.99/3,520.14
  6. Step 6: Final answer
    x = 1,817.47

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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.