Home / 2,218.08-3,326.58-1,395.12

Finding the Fourth Proportional to 2,218.08, 3,326.58 and 1,395.12

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Solution

The fourth proportional to 2,218.08, 3,326.58 and 1,395.12 is: 2,092.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.08 : 3,326.58 = 1,395.12 : x
  2. Step 2: Convert to fraction form
    2,218.08/3,326.58 = 1,395.12/x
  3. Step 3: Cross multiply
    2,218.08x = 3,326.58 × 1,395.12
  4. Step 4: Simplify right side
    2,218.08x = 4,640,978.29
  5. Step 5: Solve for x
    x = 4,640,978.29/2,218.08
  6. Step 6: Final answer
    x = 2,092.34

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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.