Home / 5,252.72-7,881.40-2,786.94

Finding the Fourth Proportional to 5,252.72, 7,881.40 and 2,786.94

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Solution

The fourth proportional to 5,252.72, 7,881.40 and 2,786.94 is: 4,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.72 : 7,881.40 = 2,786.94 : x
  2. Step 2: Convert to fraction form
    5,252.72/7,881.40 = 2,786.94/x
  3. Step 3: Cross multiply
    5,252.72x = 7,881.40 × 2,786.94
  4. Step 4: Simplify right side
    5,252.72x = 21,964,988.92
  5. Step 5: Solve for x
    x = 21,964,988.92/5,252.72
  6. Step 6: Final answer
    x = 4,181.64

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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.