Home / 5,127.81-7,687.95-2,005.09

Finding the Fourth Proportional to 5,127.81, 7,687.95 and 2,005.09

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Solution

The fourth proportional to 5,127.81, 7,687.95 and 2,005.09 is: 3,006.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.81 : 7,687.95 = 2,005.09 : x
  2. Step 2: Convert to fraction form
    5,127.81/7,687.95 = 2,005.09/x
  3. Step 3: Cross multiply
    5,127.81x = 7,687.95 × 2,005.09
  4. Step 4: Simplify right side
    5,127.81x = 15,415,004.93
  5. Step 5: Solve for x
    x = 15,415,004.93/5,127.81
  6. Step 6: Final answer
    x = 3,006.16

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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.