Home / 5,119.07-7,064.25-2,880.95

Finding the Fourth Proportional to 5,119.07, 7,064.25 and 2,880.95

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Solution

The fourth proportional to 5,119.07, 7,064.25 and 2,880.95 is: 3,975.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.07 : 7,064.25 = 2,880.95 : x
  2. Step 2: Convert to fraction form
    5,119.07/7,064.25 = 2,880.95/x
  3. Step 3: Cross multiply
    5,119.07x = 7,064.25 × 2,880.95
  4. Step 4: Simplify right side
    5,119.07x = 20,351,751.04
  5. Step 5: Solve for x
    x = 20,351,751.04/5,119.07
  6. Step 6: Final answer
    x = 3,975.67

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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.