Home / 3,935.78-5,899.35-1,336.76

Finding the Fourth Proportional to 3,935.78, 5,899.35 and 1,336.76

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Solution

The fourth proportional to 3,935.78, 5,899.35 and 1,336.76 is: 2,003.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.78 : 5,899.35 = 1,336.76 : x
  2. Step 2: Convert to fraction form
    3,935.78/5,899.35 = 1,336.76/x
  3. Step 3: Cross multiply
    3,935.78x = 5,899.35 × 1,336.76
  4. Step 4: Simplify right side
    3,935.78x = 7,886,015.11
  5. Step 5: Solve for x
    x = 7,886,015.11/3,935.78
  6. Step 6: Final answer
    x = 2,003.67

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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.