Home / 3,105.11-4,654.56-1,719.07

Finding the Fourth Proportional to 3,105.11, 4,654.56 and 1,719.07

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Solution

The fourth proportional to 3,105.11, 4,654.56 and 1,719.07 is: 2,576.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.11 : 4,654.56 = 1,719.07 : x
  2. Step 2: Convert to fraction form
    3,105.11/4,654.56 = 1,719.07/x
  3. Step 3: Cross multiply
    3,105.11x = 4,654.56 × 1,719.07
  4. Step 4: Simplify right side
    3,105.11x = 8,001,514.46
  5. Step 5: Solve for x
    x = 8,001,514.46/3,105.11
  6. Step 6: Final answer
    x = 2,576.89

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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.