Home / 3,101.64-4,278.46-2,039.60

Finding the Fourth Proportional to 3,101.64, 4,278.46 and 2,039.60

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Solution

The fourth proportional to 3,101.64, 4,278.46 and 2,039.60 is: 2,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.64 : 4,278.46 = 2,039.60 : x
  2. Step 2: Convert to fraction form
    3,101.64/4,278.46 = 2,039.60/x
  3. Step 3: Cross multiply
    3,101.64x = 4,278.46 × 2,039.60
  4. Step 4: Simplify right side
    3,101.64x = 8,726,347.02
  5. Step 5: Solve for x
    x = 8,726,347.02/3,101.64
  6. Step 6: Final answer
    x = 2,813.46

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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.