Home / 5,379.10-8,069.67-1,868.97

Finding the Fourth Proportional to 5,379.10, 8,069.67 and 1,868.97

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Solution

The fourth proportional to 5,379.10, 8,069.67 and 1,868.97 is: 2,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.10 : 8,069.67 = 1,868.97 : x
  2. Step 2: Convert to fraction form
    5,379.10/8,069.67 = 1,868.97/x
  3. Step 3: Cross multiply
    5,379.10x = 8,069.67 × 1,868.97
  4. Step 4: Simplify right side
    5,379.10x = 15,081,971.14
  5. Step 5: Solve for x
    x = 15,081,971.14/5,379.10
  6. Step 6: Final answer
    x = 2,803.81

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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.