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Finding the Fourth Proportional to 3,784.65, 5,676.51 and 1,011.51

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Solution

The fourth proportional to 3,784.65, 5,676.51 and 1,011.51 is: 1,517.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.65 : 5,676.51 = 1,011.51 : x
  2. Step 2: Convert to fraction form
    3,784.65/5,676.51 = 1,011.51/x
  3. Step 3: Cross multiply
    3,784.65x = 5,676.51 × 1,011.51
  4. Step 4: Simplify right side
    3,784.65x = 5,741,846.63
  5. Step 5: Solve for x
    x = 5,741,846.63/3,784.65
  6. Step 6: Final answer
    x = 1,517.14

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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.