Home / 2,828.50-4,233.60-2,087.80

Finding the Fourth Proportional to 2,828.50, 4,233.60 and 2,087.80

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Solution

The fourth proportional to 2,828.50, 4,233.60 and 2,087.80 is: 3,124.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.50 : 4,233.60 = 2,087.80 : x
  2. Step 2: Convert to fraction form
    2,828.50/4,233.60 = 2,087.80/x
  3. Step 3: Cross multiply
    2,828.50x = 4,233.60 × 2,087.80
  4. Step 4: Simplify right side
    2,828.50x = 8,838,910.08
  5. Step 5: Solve for x
    x = 8,838,910.08/2,828.50
  6. Step 6: Final answer
    x = 3,124.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.