Home / 5,380.91-8,066.49-1,917.35

Finding the Fourth Proportional to 5,380.91, 8,066.49 and 1,917.35

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Solution

The fourth proportional to 5,380.91, 8,066.49 and 1,917.35 is: 2,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.91 : 8,066.49 = 1,917.35 : x
  2. Step 2: Convert to fraction form
    5,380.91/8,066.49 = 1,917.35/x
  3. Step 3: Cross multiply
    5,380.91x = 8,066.49 × 1,917.35
  4. Step 4: Simplify right side
    5,380.91x = 15,466,244.27
  5. Step 5: Solve for x
    x = 15,466,244.27/5,380.91
  6. Step 6: Final answer
    x = 2,874.28

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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.