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Finding the Fourth Proportional to 2,308.40, 3,466.20 and 1,336.40

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Solution

The fourth proportional to 2,308.40, 3,466.20 and 1,336.40 is: 2,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.40 : 3,466.20 = 1,336.40 : x
  2. Step 2: Convert to fraction form
    2,308.40/3,466.20 = 1,336.40/x
  3. Step 3: Cross multiply
    2,308.40x = 3,466.20 × 1,336.40
  4. Step 4: Simplify right side
    2,308.40x = 4,632,229.68
  5. Step 5: Solve for x
    x = 4,632,229.68/2,308.40
  6. Step 6: Final answer
    x = 2,006.68

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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.