Home / 3,081.44-4,621.66-1,438.16

Finding the Fourth Proportional to 3,081.44, 4,621.66 and 1,438.16

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Solution

The fourth proportional to 3,081.44, 4,621.66 and 1,438.16 is: 2,157.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.44 : 4,621.66 = 1,438.16 : x
  2. Step 2: Convert to fraction form
    3,081.44/4,621.66 = 1,438.16/x
  3. Step 3: Cross multiply
    3,081.44x = 4,621.66 × 1,438.16
  4. Step 4: Simplify right side
    3,081.44x = 6,646,659.84
  5. Step 5: Solve for x
    x = 6,646,659.84/3,081.44
  6. Step 6: Final answer
    x = 2,157.00

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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.