Home / 4,083.28-6,122.68-1,890.80

Finding the Fourth Proportional to 4,083.28, 6,122.68 and 1,890.80

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Solution

The fourth proportional to 4,083.28, 6,122.68 and 1,890.80 is: 2,835.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,083.28 : 6,122.68 = 1,890.80 : x
  2. Step 2: Convert to fraction form
    4,083.28/6,122.68 = 1,890.80/x
  3. Step 3: Cross multiply
    4,083.28x = 6,122.68 × 1,890.80
  4. Step 4: Simplify right side
    4,083.28x = 11,576,763.34
  5. Step 5: Solve for x
    x = 11,576,763.34/4,083.28
  6. Step 6: Final answer
    x = 2,835.16

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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.