Home / 3,710.95-5,119.52-2,138.11

Finding the Fourth Proportional to 3,710.95, 5,119.52 and 2,138.11

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Solution

The fourth proportional to 3,710.95, 5,119.52 and 2,138.11 is: 2,949.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.95 : 5,119.52 = 2,138.11 : x
  2. Step 2: Convert to fraction form
    3,710.95/5,119.52 = 2,138.11/x
  3. Step 3: Cross multiply
    3,710.95x = 5,119.52 × 2,138.11
  4. Step 4: Simplify right side
    3,710.95x = 10,946,086.22
  5. Step 5: Solve for x
    x = 10,946,086.22/3,710.95
  6. Step 6: Final answer
    x = 2,949.67

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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.