Home / 5,814.10-8,721.08-1,431.60

Finding the Fourth Proportional to 5,814.10, 8,721.08 and 1,431.60

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Solution

The fourth proportional to 5,814.10, 8,721.08 and 1,431.60 is: 2,147.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.10 : 8,721.08 = 1,431.60 : x
  2. Step 2: Convert to fraction form
    5,814.10/8,721.08 = 1,431.60/x
  3. Step 3: Cross multiply
    5,814.10x = 8,721.08 × 1,431.60
  4. Step 4: Simplify right side
    5,814.10x = 12,485,098.13
  5. Step 5: Solve for x
    x = 12,485,098.13/5,814.10
  6. Step 6: Final answer
    x = 2,147.38

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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.