Home / 4,205.50-6,305.85-1,282.78

Finding the Fourth Proportional to 4,205.50, 6,305.85 and 1,282.78

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Solution

The fourth proportional to 4,205.50, 6,305.85 and 1,282.78 is: 1,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,205.50 : 6,305.85 = 1,282.78 : x
  2. Step 2: Convert to fraction form
    4,205.50/6,305.85 = 1,282.78/x
  3. Step 3: Cross multiply
    4,205.50x = 6,305.85 × 1,282.78
  4. Step 4: Simplify right side
    4,205.50x = 8,089,018.26
  5. Step 5: Solve for x
    x = 8,089,018.26/4,205.50
  6. Step 6: Final answer
    x = 1,923.44

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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.