Home / 2,872.62-4,280.04-2,683.99

Finding the Fourth Proportional to 2,872.62, 4,280.04 and 2,683.99

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Solution

The fourth proportional to 2,872.62, 4,280.04 and 2,683.99 is: 3,998.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.62 : 4,280.04 = 2,683.99 : x
  2. Step 2: Convert to fraction form
    2,872.62/4,280.04 = 2,683.99/x
  3. Step 3: Cross multiply
    2,872.62x = 4,280.04 × 2,683.99
  4. Step 4: Simplify right side
    2,872.62x = 11,487,584.56
  5. Step 5: Solve for x
    x = 11,487,584.56/2,872.62
  6. Step 6: Final answer
    x = 3,998.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.