Home / 3,231.42-4,458.81-1,904.64

Finding the Fourth Proportional to 3,231.42, 4,458.81 and 1,904.64

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Solution

The fourth proportional to 3,231.42, 4,458.81 and 1,904.64 is: 2,628.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.42 : 4,458.81 = 1,904.64 : x
  2. Step 2: Convert to fraction form
    3,231.42/4,458.81 = 1,904.64/x
  3. Step 3: Cross multiply
    3,231.42x = 4,458.81 × 1,904.64
  4. Step 4: Simplify right side
    3,231.42x = 8,492,427.88
  5. Step 5: Solve for x
    x = 8,492,427.88/3,231.42
  6. Step 6: Final answer
    x = 2,628.08

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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.