Home / 3,231.06-4,455.81-2,171.22

Finding the Fourth Proportional to 3,231.06, 4,455.81 and 2,171.22

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Solution

The fourth proportional to 3,231.06, 4,455.81 and 2,171.22 is: 2,994.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.06 : 4,455.81 = 2,171.22 : x
  2. Step 2: Convert to fraction form
    3,231.06/4,455.81 = 2,171.22/x
  3. Step 3: Cross multiply
    3,231.06x = 4,455.81 × 2,171.22
  4. Step 4: Simplify right side
    3,231.06x = 9,674,543.79
  5. Step 5: Solve for x
    x = 9,674,543.79/3,231.06
  6. Step 6: Final answer
    x = 2,994.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.