Home / 2,171.55-3,257.27-1,045.56

Finding the Fourth Proportional to 2,171.55, 3,257.27 and 1,045.56

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Solution

The fourth proportional to 2,171.55, 3,257.27 and 1,045.56 is: 1,568.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.55 : 3,257.27 = 1,045.56 : x
  2. Step 2: Convert to fraction form
    2,171.55/3,257.27 = 1,045.56/x
  3. Step 3: Cross multiply
    2,171.55x = 3,257.27 × 1,045.56
  4. Step 4: Simplify right side
    2,171.55x = 3,405,665.99
  5. Step 5: Solve for x
    x = 3,405,665.99/2,171.55
  6. Step 6: Final answer
    x = 1,568.31

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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.