Home / 5,263.67-7,890.01-2,142.43

Finding the Fourth Proportional to 5,263.67, 7,890.01 and 2,142.43

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Solution

The fourth proportional to 5,263.67, 7,890.01 and 2,142.43 is: 3,211.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,263.67 : 7,890.01 = 2,142.43 : x
  2. Step 2: Convert to fraction form
    5,263.67/7,890.01 = 2,142.43/x
  3. Step 3: Cross multiply
    5,263.67x = 7,890.01 × 2,142.43
  4. Step 4: Simplify right side
    5,263.67x = 16,903,794.12
  5. Step 5: Solve for x
    x = 16,903,794.12/5,263.67
  6. Step 6: Final answer
    x = 3,211.41

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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.