Home / 3,645.20-5,470.03-1,453.55

Finding the Fourth Proportional to 3,645.20, 5,470.03 and 1,453.55

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Solution

The fourth proportional to 3,645.20, 5,470.03 and 1,453.55 is: 2,181.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.20 : 5,470.03 = 1,453.55 : x
  2. Step 2: Convert to fraction form
    3,645.20/5,470.03 = 1,453.55/x
  3. Step 3: Cross multiply
    3,645.20x = 5,470.03 × 1,453.55
  4. Step 4: Simplify right side
    3,645.20x = 7,950,936.57
  5. Step 5: Solve for x
    x = 7,950,936.57/3,645.20
  6. Step 6: Final answer
    x = 2,181.21

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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.