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Finding the Fourth Proportional to 3,751.76, 5,628.44 and 1,670.96

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Solution

The fourth proportional to 3,751.76, 5,628.44 and 1,670.96 is: 2,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.76 : 5,628.44 = 1,670.96 : x
  2. Step 2: Convert to fraction form
    3,751.76/5,628.44 = 1,670.96/x
  3. Step 3: Cross multiply
    3,751.76x = 5,628.44 × 1,670.96
  4. Step 4: Simplify right side
    3,751.76x = 9,404,898.10
  5. Step 5: Solve for x
    x = 9,404,898.10/3,751.76
  6. Step 6: Final answer
    x = 2,506.80

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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.