Home / 3,279.21-4,912.31-1,549.05

Finding the Fourth Proportional to 3,279.21, 4,912.31 and 1,549.05

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Solution

The fourth proportional to 3,279.21, 4,912.31 and 1,549.05 is: 2,320.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.21 : 4,912.31 = 1,549.05 : x
  2. Step 2: Convert to fraction form
    3,279.21/4,912.31 = 1,549.05/x
  3. Step 3: Cross multiply
    3,279.21x = 4,912.31 × 1,549.05
  4. Step 4: Simplify right side
    3,279.21x = 7,609,417.68
  5. Step 5: Solve for x
    x = 7,609,417.68/3,279.21
  6. Step 6: Final answer
    x = 2,320.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.