Home / 4,410.78-6,611.85-1,815.54

Finding the Fourth Proportional to 4,410.78, 6,611.85 and 1,815.54

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Solution

The fourth proportional to 4,410.78, 6,611.85 and 1,815.54 is: 2,721.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,410.78 : 6,611.85 = 1,815.54 : x
  2. Step 2: Convert to fraction form
    4,410.78/6,611.85 = 1,815.54/x
  3. Step 3: Cross multiply
    4,410.78x = 6,611.85 × 1,815.54
  4. Step 4: Simplify right side
    4,410.78x = 12,004,078.15
  5. Step 5: Solve for x
    x = 12,004,078.15/4,410.78
  6. Step 6: Final answer
    x = 2,721.53

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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.