Home / 5,428.98-8,144.69-1,966.23

Finding the Fourth Proportional to 5,428.98, 8,144.69 and 1,966.23

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Solution

The fourth proportional to 5,428.98, 8,144.69 and 1,966.23 is: 2,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.98 : 8,144.69 = 1,966.23 : x
  2. Step 2: Convert to fraction form
    5,428.98/8,144.69 = 1,966.23/x
  3. Step 3: Cross multiply
    5,428.98x = 8,144.69 × 1,966.23
  4. Step 4: Simplify right side
    5,428.98x = 16,014,323.99
  5. Step 5: Solve for x
    x = 16,014,323.99/5,428.98
  6. Step 6: Final answer
    x = 2,949.79

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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.