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Finding the Fourth Proportional to 2,255.58, 3,383.36 and 612.12

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Solution

The fourth proportional to 2,255.58, 3,383.36 and 612.12 is: 918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.58 : 3,383.36 = 612.12 : x
  2. Step 2: Convert to fraction form
    2,255.58/3,383.36 = 612.12/x
  3. Step 3: Cross multiply
    2,255.58x = 3,383.36 × 612.12
  4. Step 4: Simplify right side
    2,255.58x = 2,071,019.26
  5. Step 5: Solve for x
    x = 2,071,019.26/2,255.58
  6. Step 6: Final answer
    x = 918.18

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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.