Home / 5,817.84-8,729.09-2,120.33

Finding the Fourth Proportional to 5,817.84, 8,729.09 and 2,120.33

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Solution

The fourth proportional to 5,817.84, 8,729.09 and 2,120.33 is: 3,181.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,817.84 : 8,729.09 = 2,120.33 : x
  2. Step 2: Convert to fraction form
    5,817.84/8,729.09 = 2,120.33/x
  3. Step 3: Cross multiply
    5,817.84x = 8,729.09 × 2,120.33
  4. Step 4: Simplify right side
    5,817.84x = 18,508,551.40
  5. Step 5: Solve for x
    x = 18,508,551.40/5,817.84
  6. Step 6: Final answer
    x = 3,181.34

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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.