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Finding the Fourth Proportional to 3,157.76, 4,733 and 1,771.72

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Solution

The fourth proportional to 3,157.76, 4,733 and 1,771.72 is: 2,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.76 : 4,733 = 1,771.72 : x
  2. Step 2: Convert to fraction form
    3,157.76/4,733 = 1,771.72/x
  3. Step 3: Cross multiply
    3,157.76x = 4,733 × 1,771.72
  4. Step 4: Simplify right side
    3,157.76x = 8,385,550.76
  5. Step 5: Solve for x
    x = 8,385,550.76/3,157.76
  6. Step 6: Final answer
    x = 2,655.54

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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.