Home / 5,814.46-8,721.70-1,431.92

Finding the Fourth Proportional to 5,814.46, 8,721.70 and 1,431.92

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Solution

The fourth proportional to 5,814.46, 8,721.70 and 1,431.92 is: 2,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.46 : 8,721.70 = 1,431.92 : x
  2. Step 2: Convert to fraction form
    5,814.46/8,721.70 = 1,431.92/x
  3. Step 3: Cross multiply
    5,814.46x = 8,721.70 × 1,431.92
  4. Step 4: Simplify right side
    5,814.46x = 12,488,729.48
  5. Step 5: Solve for x
    x = 12,488,729.48/5,814.46
  6. Step 6: Final answer
    x = 2,147.88

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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.