Home / 3,126-4,311.88-2,006.56

Finding the Fourth Proportional to 3,126, 4,311.88 and 2,006.56

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Solution

The fourth proportional to 3,126, 4,311.88 and 2,006.56 is: 2,767.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126 : 4,311.88 = 2,006.56 : x
  2. Step 2: Convert to fraction form
    3,126/4,311.88 = 2,006.56/x
  3. Step 3: Cross multiply
    3,126x = 4,311.88 × 2,006.56
  4. Step 4: Simplify right side
    3,126x = 8,652,045.93
  5. Step 5: Solve for x
    x = 8,652,045.93/3,126
  6. Step 6: Final answer
    x = 2,767.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.