Home / 3,171.45-4,378.01-2,094.69

Finding the Fourth Proportional to 3,171.45, 4,378.01 and 2,094.69

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Solution

The fourth proportional to 3,171.45, 4,378.01 and 2,094.69 is: 2,891.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.45 : 4,378.01 = 2,094.69 : x
  2. Step 2: Convert to fraction form
    3,171.45/4,378.01 = 2,094.69/x
  3. Step 3: Cross multiply
    3,171.45x = 4,378.01 × 2,094.69
  4. Step 4: Simplify right side
    3,171.45x = 9,170,563.29
  5. Step 5: Solve for x
    x = 9,170,563.29/3,171.45
  6. Step 6: Final answer
    x = 2,891.60

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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.