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Finding the Fourth Proportional to 2,879.91, 4,317.13 and 1,836.99

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Solution

The fourth proportional to 2,879.91, 4,317.13 and 1,836.99 is: 2,753.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.91 : 4,317.13 = 1,836.99 : x
  2. Step 2: Convert to fraction form
    2,879.91/4,317.13 = 1,836.99/x
  3. Step 3: Cross multiply
    2,879.91x = 4,317.13 × 1,836.99
  4. Step 4: Simplify right side
    2,879.91x = 7,930,524.64
  5. Step 5: Solve for x
    x = 7,930,524.64/2,879.91
  6. Step 6: Final answer
    x = 2,753.74

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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.