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Finding the Fourth Proportional to 3,388.78, 4,676.88 and 2,601.46

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Solution

The fourth proportional to 3,388.78, 4,676.88 and 2,601.46 is: 3,590.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.78 : 4,676.88 = 2,601.46 : x
  2. Step 2: Convert to fraction form
    3,388.78/4,676.88 = 2,601.46/x
  3. Step 3: Cross multiply
    3,388.78x = 4,676.88 × 2,601.46
  4. Step 4: Simplify right side
    3,388.78x = 12,166,716.24
  5. Step 5: Solve for x
    x = 12,166,716.24/3,388.78
  6. Step 6: Final answer
    x = 3,590.29

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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.