Home / 3,231.20-4,847.16-1,283.60

Finding the Fourth Proportional to 3,231.20, 4,847.16 and 1,283.60

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Solution

The fourth proportional to 3,231.20, 4,847.16 and 1,283.60 is: 1,925.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.20 : 4,847.16 = 1,283.60 : x
  2. Step 2: Convert to fraction form
    3,231.20/4,847.16 = 1,283.60/x
  3. Step 3: Cross multiply
    3,231.20x = 4,847.16 × 1,283.60
  4. Step 4: Simplify right side
    3,231.20x = 6,221,814.58
  5. Step 5: Solve for x
    x = 6,221,814.58/3,231.20
  6. Step 6: Final answer
    x = 1,925.54

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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.