Home / 2,678.11-4,016.66-923.04

Finding the Fourth Proportional to 2,678.11, 4,016.66 and 923.04

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Solution

The fourth proportional to 2,678.11, 4,016.66 and 923.04 is: 1,384.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.11 : 4,016.66 = 923.04 : x
  2. Step 2: Convert to fraction form
    2,678.11/4,016.66 = 923.04/x
  3. Step 3: Cross multiply
    2,678.11x = 4,016.66 × 923.04
  4. Step 4: Simplify right side
    2,678.11x = 3,707,533.23
  5. Step 5: Solve for x
    x = 3,707,533.23/2,678.11
  6. Step 6: Final answer
    x = 1,384.39

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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.