Home / 3,231.51-4,846.62-890.91

Finding the Fourth Proportional to 3,231.51, 4,846.62 and 890.91

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Solution

The fourth proportional to 3,231.51, 4,846.62 and 890.91 is: 1,336.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.51 : 4,846.62 = 890.91 : x
  2. Step 2: Convert to fraction form
    3,231.51/4,846.62 = 890.91/x
  3. Step 3: Cross multiply
    3,231.51x = 4,846.62 × 890.91
  4. Step 4: Simplify right side
    3,231.51x = 4,317,902.22
  5. Step 5: Solve for x
    x = 4,317,902.22/3,231.51
  6. Step 6: Final answer
    x = 1,336.19

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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.