Home / 4,259.59-6,391.44-1,921.25

Finding the Fourth Proportional to 4,259.59, 6,391.44 and 1,921.25

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Solution

The fourth proportional to 4,259.59, 6,391.44 and 1,921.25 is: 2,882.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.59 : 6,391.44 = 1,921.25 : x
  2. Step 2: Convert to fraction form
    4,259.59/6,391.44 = 1,921.25/x
  3. Step 3: Cross multiply
    4,259.59x = 6,391.44 × 1,921.25
  4. Step 4: Simplify right side
    4,259.59x = 12,279,570.08
  5. Step 5: Solve for x
    x = 12,279,570.08/4,259.59
  6. Step 6: Final answer
    x = 2,882.81

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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.