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Finding the Fourth Proportional to 2,917.85, 4,363.48 and 2,177.99

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Solution

The fourth proportional to 2,917.85, 4,363.48 and 2,177.99 is: 3,257.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.85 : 4,363.48 = 2,177.99 : x
  2. Step 2: Convert to fraction form
    2,917.85/4,363.48 = 2,177.99/x
  3. Step 3: Cross multiply
    2,917.85x = 4,363.48 × 2,177.99
  4. Step 4: Simplify right side
    2,917.85x = 9,503,588.54
  5. Step 5: Solve for x
    x = 9,503,588.54/2,917.85
  6. Step 6: Final answer
    x = 3,257.05

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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.