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Finding the Fourth Proportional to 5,813.96, 8,722.01 and 2,691.90

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Solution

The fourth proportional to 5,813.96, 8,722.01 and 2,691.90 is: 4,038.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.96 : 8,722.01 = 2,691.90 : x
  2. Step 2: Convert to fraction form
    5,813.96/8,722.01 = 2,691.90/x
  3. Step 3: Cross multiply
    5,813.96x = 8,722.01 × 2,691.90
  4. Step 4: Simplify right side
    5,813.96x = 23,478,785.45
  5. Step 5: Solve for x
    x = 23,478,785.45/5,813.96
  6. Step 6: Final answer
    x = 4,038.35

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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.