Home / 1,379.56-2,069.34-1,295.08

Finding the Fourth Proportional to 1,379.56, 2,069.34 and 1,295.08

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Solution

The fourth proportional to 1,379.56, 2,069.34 and 1,295.08 is: 1,942.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379.56 : 2,069.34 = 1,295.08 : x
  2. Step 2: Convert to fraction form
    1,379.56/2,069.34 = 1,295.08/x
  3. Step 3: Cross multiply
    1,379.56x = 2,069.34 × 1,295.08
  4. Step 4: Simplify right side
    1,379.56x = 2,679,960.85
  5. Step 5: Solve for x
    x = 2,679,960.85/1,379.56
  6. Step 6: Final answer
    x = 1,942.62

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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.