Home / 5,199.21-7,795.17-1,911.89

Finding the Fourth Proportional to 5,199.21, 7,795.17 and 1,911.89

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Solution

The fourth proportional to 5,199.21, 7,795.17 and 1,911.89 is: 2,866.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,199.21 : 7,795.17 = 1,911.89 : x
  2. Step 2: Convert to fraction form
    5,199.21/7,795.17 = 1,911.89/x
  3. Step 3: Cross multiply
    5,199.21x = 7,795.17 × 1,911.89
  4. Step 4: Simplify right side
    5,199.21x = 14,903,468.60
  5. Step 5: Solve for x
    x = 14,903,468.60/5,199.21
  6. Step 6: Final answer
    x = 2,866.49

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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.