Home / 3,231.36-4,847.34-1,981.32

Finding the Fourth Proportional to 3,231.36, 4,847.34 and 1,981.32

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Solution

The fourth proportional to 3,231.36, 4,847.34 and 1,981.32 is: 2,972.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.36 : 4,847.34 = 1,981.32 : x
  2. Step 2: Convert to fraction form
    3,231.36/4,847.34 = 1,981.32/x
  3. Step 3: Cross multiply
    3,231.36x = 4,847.34 × 1,981.32
  4. Step 4: Simplify right side
    3,231.36x = 9,604,131.69
  5. Step 5: Solve for x
    x = 9,604,131.69/3,231.36
  6. Step 6: Final answer
    x = 2,972.16

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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.