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Finding the Fourth Proportional to 2,118.86, 3,176.97 and 884.76

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Solution

The fourth proportional to 2,118.86, 3,176.97 and 884.76 is: 1,326.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.86 : 3,176.97 = 884.76 : x
  2. Step 2: Convert to fraction form
    2,118.86/3,176.97 = 884.76/x
  3. Step 3: Cross multiply
    2,118.86x = 3,176.97 × 884.76
  4. Step 4: Simplify right side
    2,118.86x = 2,810,855.98
  5. Step 5: Solve for x
    x = 2,810,855.98/2,118.86
  6. Step 6: Final answer
    x = 1,326.59

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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.