Home / 3,146.94-4,342.46-1,821.06

Finding the Fourth Proportional to 3,146.94, 4,342.46 and 1,821.06

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Solution

The fourth proportional to 3,146.94, 4,342.46 and 1,821.06 is: 2,512.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.94 : 4,342.46 = 1,821.06 : x
  2. Step 2: Convert to fraction form
    3,146.94/4,342.46 = 1,821.06/x
  3. Step 3: Cross multiply
    3,146.94x = 4,342.46 × 1,821.06
  4. Step 4: Simplify right side
    3,146.94x = 7,907,871.10
  5. Step 5: Solve for x
    x = 7,907,871.10/3,146.94
  6. Step 6: Final answer
    x = 2,512.88

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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.