Home / 3,115.94-4,672.40-1,654.70

Finding the Fourth Proportional to 3,115.94, 4,672.40 and 1,654.70

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Solution

The fourth proportional to 3,115.94, 4,672.40 and 1,654.70 is: 2,481.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.94 : 4,672.40 = 1,654.70 : x
  2. Step 2: Convert to fraction form
    3,115.94/4,672.40 = 1,654.70/x
  3. Step 3: Cross multiply
    3,115.94x = 4,672.40 × 1,654.70
  4. Step 4: Simplify right side
    3,115.94x = 7,731,388.64
  5. Step 5: Solve for x
    x = 7,731,388.64/3,115.94
  6. Step 6: Final answer
    x = 2,481.24

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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.