Home / 5,814.15-8,721.14-1,431.61

Finding the Fourth Proportional to 5,814.15, 8,721.14 and 1,431.61

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Solution

The fourth proportional to 5,814.15, 8,721.14 and 1,431.61 is: 2,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.15 : 8,721.14 = 1,431.61 : x
  2. Step 2: Convert to fraction form
    5,814.15/8,721.14 = 1,431.61/x
  3. Step 3: Cross multiply
    5,814.15x = 8,721.14 × 1,431.61
  4. Step 4: Simplify right side
    5,814.15x = 12,485,242.27
  5. Step 5: Solve for x
    x = 12,485,242.27/5,814.15
  6. Step 6: Final answer
    x = 2,147.39

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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.