Home / 5,538.92-7,639.62-4,127.36

Finding the Fourth Proportional to 5,538.92, 7,639.62 and 4,127.36

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Solution

The fourth proportional to 5,538.92, 7,639.62 and 4,127.36 is: 5,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.92 : 7,639.62 = 4,127.36 : x
  2. Step 2: Convert to fraction form
    5,538.92/7,639.62 = 4,127.36/x
  3. Step 3: Cross multiply
    5,538.92x = 7,639.62 × 4,127.36
  4. Step 4: Simplify right side
    5,538.92x = 31,531,462.00
  5. Step 5: Solve for x
    x = 31,531,462.00/5,538.92
  6. Step 6: Final answer
    x = 5,692.71

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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.