Home / 4,751.36-7,127.01-1,288.61

Finding the Fourth Proportional to 4,751.36, 7,127.01 and 1,288.61

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Solution

The fourth proportional to 4,751.36, 7,127.01 and 1,288.61 is: 1,932.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.36 : 7,127.01 = 1,288.61 : x
  2. Step 2: Convert to fraction form
    4,751.36/7,127.01 = 1,288.61/x
  3. Step 3: Cross multiply
    4,751.36x = 7,127.01 × 1,288.61
  4. Step 4: Simplify right side
    4,751.36x = 9,183,936.36
  5. Step 5: Solve for x
    x = 9,183,936.36/4,751.36
  6. Step 6: Final answer
    x = 1,932.91

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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.