Home / 6,286.06-9,428.55-2,125.90

Finding the Fourth Proportional to 6,286.06, 9,428.55 and 2,125.90

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Solution

The fourth proportional to 6,286.06, 9,428.55 and 2,125.90 is: 3,188.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286.06 : 9,428.55 = 2,125.90 : x
  2. Step 2: Convert to fraction form
    6,286.06/9,428.55 = 2,125.90/x
  3. Step 3: Cross multiply
    6,286.06x = 9,428.55 × 2,125.90
  4. Step 4: Simplify right side
    6,286.06x = 20,044,154.45
  5. Step 5: Solve for x
    x = 20,044,154.45/6,286.06
  6. Step 6: Final answer
    x = 3,188.67

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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.