Home / 4,089.35-6,129.78-1,896.28

Finding the Fourth Proportional to 4,089.35, 6,129.78 and 1,896.28

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Solution

The fourth proportional to 4,089.35, 6,129.78 and 1,896.28 is: 2,842.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.35 : 6,129.78 = 1,896.28 : x
  2. Step 2: Convert to fraction form
    4,089.35/6,129.78 = 1,896.28/x
  3. Step 3: Cross multiply
    4,089.35x = 6,129.78 × 1,896.28
  4. Step 4: Simplify right side
    4,089.35x = 11,623,756.78
  5. Step 5: Solve for x
    x = 11,623,756.78/4,089.35
  6. Step 6: Final answer
    x = 2,842.44

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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.