Home / 3,255.09-4,489.90-1,927.81

Finding the Fourth Proportional to 3,255.09, 4,489.90 and 1,927.81

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Solution

The fourth proportional to 3,255.09, 4,489.90 and 1,927.81 is: 2,659.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.09 : 4,489.90 = 1,927.81 : x
  2. Step 2: Convert to fraction form
    3,255.09/4,489.90 = 1,927.81/x
  3. Step 3: Cross multiply
    3,255.09x = 4,489.90 × 1,927.81
  4. Step 4: Simplify right side
    3,255.09x = 8,655,674.12
  5. Step 5: Solve for x
    x = 8,655,674.12/3,255.09
  6. Step 6: Final answer
    x = 2,659.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.