Home / 7,171.66-9,896.91-4,027.78

Finding the Fourth Proportional to 7,171.66, 9,896.91 and 4,027.78

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Solution

The fourth proportional to 7,171.66, 9,896.91 and 4,027.78 is: 5,558.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.66 : 9,896.91 = 4,027.78 : x
  2. Step 2: Convert to fraction form
    7,171.66/9,896.91 = 4,027.78/x
  3. Step 3: Cross multiply
    7,171.66x = 9,896.91 × 4,027.78
  4. Step 4: Simplify right side
    7,171.66x = 39,862,576.16
  5. Step 5: Solve for x
    x = 39,862,576.16/7,171.66
  6. Step 6: Final answer
    x = 5,558.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.