Home / 3,580-4,939.32-2,255.02

Finding the Fourth Proportional to 3,580, 4,939.32 and 2,255.02

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Solution

The fourth proportional to 3,580, 4,939.32 and 2,255.02 is: 3,111.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580 : 4,939.32 = 2,255.02 : x
  2. Step 2: Convert to fraction form
    3,580/4,939.32 = 2,255.02/x
  3. Step 3: Cross multiply
    3,580x = 4,939.32 × 2,255.02
  4. Step 4: Simplify right side
    3,580x = 11,138,265.39
  5. Step 5: Solve for x
    x = 11,138,265.39/3,580
  6. Step 6: Final answer
    x = 3,111.25

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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.