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Finding the Fourth Proportional to 5,917.84, 8,166.63 and 3,679.72

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Solution

The fourth proportional to 5,917.84, 8,166.63 and 3,679.72 is: 5,078.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,917.84 : 8,166.63 = 3,679.72 : x
  2. Step 2: Convert to fraction form
    5,917.84/8,166.63 = 3,679.72/x
  3. Step 3: Cross multiply
    5,917.84x = 8,166.63 × 3,679.72
  4. Step 4: Simplify right side
    5,917.84x = 30,050,911.74
  5. Step 5: Solve for x
    x = 30,050,911.74/5,917.84
  6. Step 6: Final answer
    x = 5,078.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.