Home / 4,419.36-6,631.47-3,131.46

Finding the Fourth Proportional to 4,419.36, 6,631.47 and 3,131.46

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Solution

The fourth proportional to 4,419.36, 6,631.47 and 3,131.46 is: 4,698.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,419.36 : 6,631.47 = 3,131.46 : x
  2. Step 2: Convert to fraction form
    4,419.36/6,631.47 = 3,131.46/x
  3. Step 3: Cross multiply
    4,419.36x = 6,631.47 × 3,131.46
  4. Step 4: Simplify right side
    4,419.36x = 20,766,183.05
  5. Step 5: Solve for x
    x = 20,766,183.05/4,419.36
  6. Step 6: Final answer
    x = 4,698.91

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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.