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Finding the Fourth Proportional to 2,228.33, 3,342.53 and 842.32

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Solution

The fourth proportional to 2,228.33, 3,342.53 and 842.32 is: 1,263.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.33 : 3,342.53 = 842.32 : x
  2. Step 2: Convert to fraction form
    2,228.33/3,342.53 = 842.32/x
  3. Step 3: Cross multiply
    2,228.33x = 3,342.53 × 842.32
  4. Step 4: Simplify right side
    2,228.33x = 2,815,467.35
  5. Step 5: Solve for x
    x = 2,815,467.35/2,228.33
  6. Step 6: Final answer
    x = 1,263.49

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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.