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Finding the Fourth Proportional to 3,369.68, 4,654.70 and 3,055.30

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Solution

The fourth proportional to 3,369.68, 4,654.70 and 3,055.30 is: 4,220.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.68 : 4,654.70 = 3,055.30 : x
  2. Step 2: Convert to fraction form
    3,369.68/4,654.70 = 3,055.30/x
  3. Step 3: Cross multiply
    3,369.68x = 4,654.70 × 3,055.30
  4. Step 4: Simplify right side
    3,369.68x = 14,221,466.36
  5. Step 5: Solve for x
    x = 14,221,466.36/3,369.68
  6. Step 6: Final answer
    x = 4,220.42

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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.