Home / 5,813.91-8,720.73-1,431.27

Finding the Fourth Proportional to 5,813.91, 8,720.73 and 1,431.27

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Solution

The fourth proportional to 5,813.91, 8,720.73 and 1,431.27 is: 2,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.91 : 8,720.73 = 1,431.27 : x
  2. Step 2: Convert to fraction form
    5,813.91/8,720.73 = 1,431.27/x
  3. Step 3: Cross multiply
    5,813.91x = 8,720.73 × 1,431.27
  4. Step 4: Simplify right side
    5,813.91x = 12,481,719.23
  5. Step 5: Solve for x
    x = 12,481,719.23/5,813.91
  6. Step 6: Final answer
    x = 2,146.87

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Similar ratio
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1.5x scale

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.