Home / 5,199.50-7,800.01-1,912.35

Finding the Fourth Proportional to 5,199.50, 7,800.01 and 1,912.35

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Solution

The fourth proportional to 5,199.50, 7,800.01 and 1,912.35 is: 2,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.50 : 7,800.01 = 1,912.35 : x
  2. Step 2: Convert to fraction form
    5,199.50/7,800.01 = 1,912.35/x
  3. Step 3: Cross multiply
    5,199.50x = 7,800.01 × 1,912.35
  4. Step 4: Simplify right side
    5,199.50x = 14,916,340.47
  5. Step 5: Solve for x
    x = 14,916,340.47/5,199.50
  6. Step 6: Final answer
    x = 2,868.80

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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.