Home / 3,076.31-4,245.31-1,679.06

Finding the Fourth Proportional to 3,076.31, 4,245.31 and 1,679.06

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Solution

The fourth proportional to 3,076.31, 4,245.31 and 1,679.06 is: 2,317.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.31 : 4,245.31 = 1,679.06 : x
  2. Step 2: Convert to fraction form
    3,076.31/4,245.31 = 1,679.06/x
  3. Step 3: Cross multiply
    3,076.31x = 4,245.31 × 1,679.06
  4. Step 4: Simplify right side
    3,076.31x = 7,128,142.92
  5. Step 5: Solve for x
    x = 7,128,142.92/3,076.31
  6. Step 6: Final answer
    x = 2,317.11

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1.5x scale

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.