Home / 4,259.95-6,388.68-2,179.28

Finding the Fourth Proportional to 4,259.95, 6,388.68 and 2,179.28

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Solution

The fourth proportional to 4,259.95, 6,388.68 and 2,179.28 is: 3,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,259.95 : 6,388.68 = 2,179.28 : x
  2. Step 2: Convert to fraction form
    4,259.95/6,388.68 = 2,179.28/x
  3. Step 3: Cross multiply
    4,259.95x = 6,388.68 × 2,179.28
  4. Step 4: Simplify right side
    4,259.95x = 13,922,722.55
  5. Step 5: Solve for x
    x = 13,922,722.55/4,259.95
  6. Step 6: Final answer
    x = 3,268.28

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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.