Home / 2,912.76-4,015.98-2,351.16

Finding the Fourth Proportional to 2,912.76, 4,015.98 and 2,351.16

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Solution

The fourth proportional to 2,912.76, 4,015.98 and 2,351.16 is: 3,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.76 : 4,015.98 = 2,351.16 : x
  2. Step 2: Convert to fraction form
    2,912.76/4,015.98 = 2,351.16/x
  3. Step 3: Cross multiply
    2,912.76x = 4,015.98 × 2,351.16
  4. Step 4: Simplify right side
    2,912.76x = 9,442,211.54
  5. Step 5: Solve for x
    x = 9,442,211.54/2,912.76
  6. Step 6: Final answer
    x = 3,241.67

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1.5x scale

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.