Home / 3,618.16-5,427.54-1,021.12

Finding the Fourth Proportional to 3,618.16, 5,427.54 and 1,021.12

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Solution

The fourth proportional to 3,618.16, 5,427.54 and 1,021.12 is: 1,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.16 : 5,427.54 = 1,021.12 : x
  2. Step 2: Convert to fraction form
    3,618.16/5,427.54 = 1,021.12/x
  3. Step 3: Cross multiply
    3,618.16x = 5,427.54 × 1,021.12
  4. Step 4: Simplify right side
    3,618.16x = 5,542,169.64
  5. Step 5: Solve for x
    x = 5,542,169.64/3,618.16
  6. Step 6: Final answer
    x = 1,531.76

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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.