Home / 3,065.86-4,231.05-1,806.64

Finding the Fourth Proportional to 3,065.86, 4,231.05 and 1,806.64

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Solution

The fourth proportional to 3,065.86, 4,231.05 and 1,806.64 is: 2,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.86 : 4,231.05 = 1,806.64 : x
  2. Step 2: Convert to fraction form
    3,065.86/4,231.05 = 1,806.64/x
  3. Step 3: Cross multiply
    3,065.86x = 4,231.05 × 1,806.64
  4. Step 4: Simplify right side
    3,065.86x = 7,643,984.17
  5. Step 5: Solve for x
    x = 7,643,984.17/3,065.86
  6. Step 6: Final answer
    x = 2,493.26

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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.