Home / 5,371.86-8,060.73-2,085.09

Finding the Fourth Proportional to 5,371.86, 8,060.73 and 2,085.09

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Solution

The fourth proportional to 5,371.86, 8,060.73 and 2,085.09 is: 3,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,371.86 : 8,060.73 = 2,085.09 : x
  2. Step 2: Convert to fraction form
    5,371.86/8,060.73 = 2,085.09/x
  3. Step 3: Cross multiply
    5,371.86x = 8,060.73 × 2,085.09
  4. Step 4: Simplify right side
    5,371.86x = 16,807,347.52
  5. Step 5: Solve for x
    x = 16,807,347.52/5,371.86
  6. Step 6: Final answer
    x = 3,128.78

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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.