Home / 4,286.47-6,428.98-1,207.75

Finding the Fourth Proportional to 4,286.47, 6,428.98 and 1,207.75

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Solution

The fourth proportional to 4,286.47, 6,428.98 and 1,207.75 is: 1,811.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.47 : 6,428.98 = 1,207.75 : x
  2. Step 2: Convert to fraction form
    4,286.47/6,428.98 = 1,207.75/x
  3. Step 3: Cross multiply
    4,286.47x = 6,428.98 × 1,207.75
  4. Step 4: Simplify right side
    4,286.47x = 7,764,600.60
  5. Step 5: Solve for x
    x = 7,764,600.60/4,286.47
  6. Step 6: Final answer
    x = 1,811.42

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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.