Home / 3,218.14-4,825.98-1,109.16

Finding the Fourth Proportional to 3,218.14, 4,825.98 and 1,109.16

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Solution

The fourth proportional to 3,218.14, 4,825.98 and 1,109.16 is: 1,663.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.14 : 4,825.98 = 1,109.16 : x
  2. Step 2: Convert to fraction form
    3,218.14/4,825.98 = 1,109.16/x
  3. Step 3: Cross multiply
    3,218.14x = 4,825.98 × 1,109.16
  4. Step 4: Simplify right side
    3,218.14x = 5,352,783.98
  5. Step 5: Solve for x
    x = 5,352,783.98/3,218.14
  6. Step 6: Final answer
    x = 1,663.32

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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.