Home / 5,087.45-7,021.05-2,819.01

Finding the Fourth Proportional to 5,087.45, 7,021.05 and 2,819.01

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Solution

The fourth proportional to 5,087.45, 7,021.05 and 2,819.01 is: 3,890.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.45 : 7,021.05 = 2,819.01 : x
  2. Step 2: Convert to fraction form
    5,087.45/7,021.05 = 2,819.01/x
  3. Step 3: Cross multiply
    5,087.45x = 7,021.05 × 2,819.01
  4. Step 4: Simplify right side
    5,087.45x = 19,792,425.92
  5. Step 5: Solve for x
    x = 19,792,425.92/5,087.45
  6. Step 6: Final answer
    x = 3,890.44

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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.