Home / 2,219.07-3,340.90-1,960.54

Finding the Fourth Proportional to 2,219.07, 3,340.90 and 1,960.54

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Solution

The fourth proportional to 2,219.07, 3,340.90 and 1,960.54 is: 2,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.07 : 3,340.90 = 1,960.54 : x
  2. Step 2: Convert to fraction form
    2,219.07/3,340.90 = 1,960.54/x
  3. Step 3: Cross multiply
    2,219.07x = 3,340.90 × 1,960.54
  4. Step 4: Simplify right side
    2,219.07x = 6,549,968.09
  5. Step 5: Solve for x
    x = 6,549,968.09/2,219.07
  6. Step 6: Final answer
    x = 2,951.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.