Home / 2,526.86-3,790.31-1,379.90

Finding the Fourth Proportional to 2,526.86, 3,790.31 and 1,379.90

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Solution

The fourth proportional to 2,526.86, 3,790.31 and 1,379.90 is: 2,069.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,526.86 : 3,790.31 = 1,379.90 : x
  2. Step 2: Convert to fraction form
    2,526.86/3,790.31 = 1,379.90/x
  3. Step 3: Cross multiply
    2,526.86x = 3,790.31 × 1,379.90
  4. Step 4: Simplify right side
    2,526.86x = 5,230,251.35
  5. Step 5: Solve for x
    x = 5,230,251.35/2,526.86
  6. Step 6: Final answer
    x = 2,069.86

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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.