Home / 7,474.78-11,213.86-2,280.26

Finding the Fourth Proportional to 7,474.78, 11,213.86 and 2,280.26

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Solution

The fourth proportional to 7,474.78, 11,213.86 and 2,280.26 is: 3,420.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.78 : 11,213.86 = 2,280.26 : x
  2. Step 2: Convert to fraction form
    7,474.78/11,213.86 = 2,280.26/x
  3. Step 3: Cross multiply
    7,474.78x = 11,213.86 × 2,280.26
  4. Step 4: Simplify right side
    7,474.78x = 25,570,516.40
  5. Step 5: Solve for x
    x = 25,570,516.40/7,474.78
  6. Step 6: Final answer
    x = 3,420.91

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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.