Home / 4,261.75-6,389.26-1,628.75

Finding the Fourth Proportional to 4,261.75, 6,389.26 and 1,628.75

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Solution

The fourth proportional to 4,261.75, 6,389.26 and 1,628.75 is: 2,441.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.75 : 6,389.26 = 1,628.75 : x
  2. Step 2: Convert to fraction form
    4,261.75/6,389.26 = 1,628.75/x
  3. Step 3: Cross multiply
    4,261.75x = 6,389.26 × 1,628.75
  4. Step 4: Simplify right side
    4,261.75x = 10,406,507.23
  5. Step 5: Solve for x
    x = 10,406,507.23/4,261.75
  6. Step 6: Final answer
    x = 2,441.84

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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.