Home / 3,078.81-4,618.28-1,436.54

Finding the Fourth Proportional to 3,078.81, 4,618.28 and 1,436.54

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Solution

The fourth proportional to 3,078.81, 4,618.28 and 1,436.54 is: 2,154.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.81 : 4,618.28 = 1,436.54 : x
  2. Step 2: Convert to fraction form
    3,078.81/4,618.28 = 1,436.54/x
  3. Step 3: Cross multiply
    3,078.81x = 4,618.28 × 1,436.54
  4. Step 4: Simplify right side
    3,078.81x = 6,634,324.45
  5. Step 5: Solve for x
    x = 6,634,324.45/3,078.81
  6. Step 6: Final answer
    x = 2,154.83

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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.