Home / 7,901.94-11,853.30-3,519.70

Finding the Fourth Proportional to 7,901.94, 11,853.30 and 3,519.70

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Solution

The fourth proportional to 7,901.94, 11,853.30 and 3,519.70 is: 5,279.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.94 : 11,853.30 = 3,519.70 : x
  2. Step 2: Convert to fraction form
    7,901.94/11,853.30 = 3,519.70/x
  3. Step 3: Cross multiply
    7,901.94x = 11,853.30 × 3,519.70
  4. Step 4: Simplify right side
    7,901.94x = 41,720,060.01
  5. Step 5: Solve for x
    x = 41,720,060.01/7,901.94
  6. Step 6: Final answer
    x = 5,279.72

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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.