Home / 3,618.45-5,427.84-1,021.59

Finding the Fourth Proportional to 3,618.45, 5,427.84 and 1,021.59

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Solution

The fourth proportional to 3,618.45, 5,427.84 and 1,021.59 is: 1,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.45 : 5,427.84 = 1,021.59 : x
  2. Step 2: Convert to fraction form
    3,618.45/5,427.84 = 1,021.59/x
  3. Step 3: Cross multiply
    3,618.45x = 5,427.84 × 1,021.59
  4. Step 4: Simplify right side
    3,618.45x = 5,545,027.07
  5. Step 5: Solve for x
    x = 5,545,027.07/3,618.45
  6. Step 6: Final answer
    x = 1,532.43

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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.