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Finding the Fourth Proportional to 3,369.74, 4,654.78 and 3,055.36

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Solution

The fourth proportional to 3,369.74, 4,654.78 and 3,055.36 is: 4,220.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.74 : 4,654.78 = 3,055.36 : x
  2. Step 2: Convert to fraction form
    3,369.74/4,654.78 = 3,055.36/x
  3. Step 3: Cross multiply
    3,369.74x = 4,654.78 × 3,055.36
  4. Step 4: Simplify right side
    3,369.74x = 14,222,009.35
  5. Step 5: Solve for x
    x = 14,222,009.35/3,369.74
  6. Step 6: Final answer
    x = 4,220.51

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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.