Home / 7,874.94-11,811.96-2,031.84

Finding the Fourth Proportional to 7,874.94, 11,811.96 and 2,031.84

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Solution

The fourth proportional to 7,874.94, 11,811.96 and 2,031.84 is: 3,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.94 : 11,811.96 = 2,031.84 : x
  2. Step 2: Convert to fraction form
    7,874.94/11,811.96 = 2,031.84/x
  3. Step 3: Cross multiply
    7,874.94x = 11,811.96 × 2,031.84
  4. Step 4: Simplify right side
    7,874.94x = 24,000,012.81
  5. Step 5: Solve for x
    x = 24,000,012.81/7,874.94
  6. Step 6: Final answer
    x = 3,047.64

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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.