Home / 5,270.84-7,273.78-2,880.86

Finding the Fourth Proportional to 5,270.84, 7,273.78 and 2,880.86

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Solution

The fourth proportional to 5,270.84, 7,273.78 and 2,880.86 is: 3,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.84 : 7,273.78 = 2,880.86 : x
  2. Step 2: Convert to fraction form
    5,270.84/7,273.78 = 2,880.86/x
  3. Step 3: Cross multiply
    5,270.84x = 7,273.78 × 2,880.86
  4. Step 4: Simplify right side
    5,270.84x = 20,954,741.85
  5. Step 5: Solve for x
    x = 20,954,741.85/5,270.84
  6. Step 6: Final answer
    x = 3,975.60

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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.