Home / 5,101.57-7,039.64-2,863.67

Finding the Fourth Proportional to 5,101.57, 7,039.64 and 2,863.67

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Solution

The fourth proportional to 5,101.57, 7,039.64 and 2,863.67 is: 3,951.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.57 : 7,039.64 = 2,863.67 : x
  2. Step 2: Convert to fraction form
    5,101.57/7,039.64 = 2,863.67/x
  3. Step 3: Cross multiply
    5,101.57x = 7,039.64 × 2,863.67
  4. Step 4: Simplify right side
    5,101.57x = 20,159,191.56
  5. Step 5: Solve for x
    x = 20,159,191.56/5,101.57
  6. Step 6: Final answer
    x = 3,951.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.