Home / 5,814.45-8,721.60-1,431.95

Finding the Fourth Proportional to 5,814.45, 8,721.60 and 1,431.95

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Solution

The fourth proportional to 5,814.45, 8,721.60 and 1,431.95 is: 2,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.45 : 8,721.60 = 1,431.95 : x
  2. Step 2: Convert to fraction form
    5,814.45/8,721.60 = 1,431.95/x
  3. Step 3: Cross multiply
    5,814.45x = 8,721.60 × 1,431.95
  4. Step 4: Simplify right side
    5,814.45x = 12,488,895.12
  5. Step 5: Solve for x
    x = 12,488,895.12/5,814.45
  6. Step 6: Final answer
    x = 2,147.91

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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.