Home / 2,816.42-4,220.22-1,643.52

Finding the Fourth Proportional to 2,816.42, 4,220.22 and 1,643.52

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Solution

The fourth proportional to 2,816.42, 4,220.22 and 1,643.52 is: 2,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.42 : 4,220.22 = 1,643.52 : x
  2. Step 2: Convert to fraction form
    2,816.42/4,220.22 = 1,643.52/x
  3. Step 3: Cross multiply
    2,816.42x = 4,220.22 × 1,643.52
  4. Step 4: Simplify right side
    2,816.42x = 6,936,015.97
  5. Step 5: Solve for x
    x = 6,936,015.97/2,816.42
  6. Step 6: Final answer
    x = 2,462.71

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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.