Home / 2,979.45-4,465.83-1,398.95

Finding the Fourth Proportional to 2,979.45, 4,465.83 and 1,398.95

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Solution

The fourth proportional to 2,979.45, 4,465.83 and 1,398.95 is: 2,096.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.45 : 4,465.83 = 1,398.95 : x
  2. Step 2: Convert to fraction form
    2,979.45/4,465.83 = 1,398.95/x
  3. Step 3: Cross multiply
    2,979.45x = 4,465.83 × 1,398.95
  4. Step 4: Simplify right side
    2,979.45x = 6,247,472.54
  5. Step 5: Solve for x
    x = 6,247,472.54/2,979.45
  6. Step 6: Final answer
    x = 2,096.85

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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.