Home / 3,213.80-4,435.14-1,816.28

Finding the Fourth Proportional to 3,213.80, 4,435.14 and 1,816.28

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Solution

The fourth proportional to 3,213.80, 4,435.14 and 1,816.28 is: 2,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.80 : 4,435.14 = 1,816.28 : x
  2. Step 2: Convert to fraction form
    3,213.80/4,435.14 = 1,816.28/x
  3. Step 3: Cross multiply
    3,213.80x = 4,435.14 × 1,816.28
  4. Step 4: Simplify right side
    3,213.80x = 8,055,456.08
  5. Step 5: Solve for x
    x = 8,055,456.08/3,213.80
  6. Step 6: Final answer
    x = 2,506.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.