Home / 3,928.42-5,892.63-1,155.11

Finding the Fourth Proportional to 3,928.42, 5,892.63 and 1,155.11

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Solution

The fourth proportional to 3,928.42, 5,892.63 and 1,155.11 is: 1,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.42 : 5,892.63 = 1,155.11 : x
  2. Step 2: Convert to fraction form
    3,928.42/5,892.63 = 1,155.11/x
  3. Step 3: Cross multiply
    3,928.42x = 5,892.63 × 1,155.11
  4. Step 4: Simplify right side
    3,928.42x = 6,806,653.60
  5. Step 5: Solve for x
    x = 6,806,653.60/3,928.42
  6. Step 6: Final answer
    x = 1,732.67

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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.