Home / 7,020.99-10,532.57-2,638.76

Finding the Fourth Proportional to 7,020.99, 10,532.57 and 2,638.76

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Solution

The fourth proportional to 7,020.99, 10,532.57 and 2,638.76 is: 3,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.99 : 10,532.57 = 2,638.76 : x
  2. Step 2: Convert to fraction form
    7,020.99/10,532.57 = 2,638.76/x
  3. Step 3: Cross multiply
    7,020.99x = 10,532.57 × 2,638.76
  4. Step 4: Simplify right side
    7,020.99x = 27,792,858.56
  5. Step 5: Solve for x
    x = 27,792,858.56/7,020.99
  6. Step 6: Final answer
    x = 3,958.54

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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.