Home / 3,645.28-5,431.61-3,257.56

Finding the Fourth Proportional to 3,645.28, 5,431.61 and 3,257.56

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Solution

The fourth proportional to 3,645.28, 5,431.61 and 3,257.56 is: 4,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.28 : 5,431.61 = 3,257.56 : x
  2. Step 2: Convert to fraction form
    3,645.28/5,431.61 = 3,257.56/x
  3. Step 3: Cross multiply
    3,645.28x = 5,431.61 × 3,257.56
  4. Step 4: Simplify right side
    3,645.28x = 17,693,795.47
  5. Step 5: Solve for x
    x = 17,693,795.47/3,645.28
  6. Step 6: Final answer
    x = 4,853.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.