Home / 3,431.21-5,153.70-2,047.25

Finding the Fourth Proportional to 3,431.21, 5,153.70 and 2,047.25

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Solution

The fourth proportional to 3,431.21, 5,153.70 and 2,047.25 is: 3,074.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.21 : 5,153.70 = 2,047.25 : x
  2. Step 2: Convert to fraction form
    3,431.21/5,153.70 = 2,047.25/x
  3. Step 3: Cross multiply
    3,431.21x = 5,153.70 × 2,047.25
  4. Step 4: Simplify right side
    3,431.21x = 10,550,886.56
  5. Step 5: Solve for x
    x = 10,550,886.56/3,431.21
  6. Step 6: Final answer
    x = 3,074.98

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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.