Home / 3,789.24-5,684.40-1,324.32

Finding the Fourth Proportional to 3,789.24, 5,684.40 and 1,324.32

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Solution

The fourth proportional to 3,789.24, 5,684.40 and 1,324.32 is: 1,986.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.24 : 5,684.40 = 1,324.32 : x
  2. Step 2: Convert to fraction form
    3,789.24/5,684.40 = 1,324.32/x
  3. Step 3: Cross multiply
    3,789.24x = 5,684.40 × 1,324.32
  4. Step 4: Simplify right side
    3,789.24x = 7,527,964.61
  5. Step 5: Solve for x
    x = 7,527,964.61/3,789.24
  6. Step 6: Final answer
    x = 1,986.67

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1.5x scale

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.