Home / 5,205.62-7,806.46-1,872.98

Finding the Fourth Proportional to 5,205.62, 7,806.46 and 1,872.98

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Solution

The fourth proportional to 5,205.62, 7,806.46 and 1,872.98 is: 2,808.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.62 : 7,806.46 = 1,872.98 : x
  2. Step 2: Convert to fraction form
    5,205.62/7,806.46 = 1,872.98/x
  3. Step 3: Cross multiply
    5,205.62x = 7,806.46 × 1,872.98
  4. Step 4: Simplify right side
    5,205.62x = 14,621,343.45
  5. Step 5: Solve for x
    x = 14,621,343.45/5,205.62
  6. Step 6: Final answer
    x = 2,808.76

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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.