Home / 3,171.05-4,376.09-1,754.72

Finding the Fourth Proportional to 3,171.05, 4,376.09 and 1,754.72

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Solution

The fourth proportional to 3,171.05, 4,376.09 and 1,754.72 is: 2,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.05 : 4,376.09 = 1,754.72 : x
  2. Step 2: Convert to fraction form
    3,171.05/4,376.09 = 1,754.72/x
  3. Step 3: Cross multiply
    3,171.05x = 4,376.09 × 1,754.72
  4. Step 4: Simplify right side
    3,171.05x = 7,678,811.56
  5. Step 5: Solve for x
    x = 7,678,811.56/3,171.05
  6. Step 6: Final answer
    x = 2,421.53

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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.