Home / 4,087.44-5,646.36-3,935.72

Finding the Fourth Proportional to 4,087.44, 5,646.36 and 3,935.72

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Solution

The fourth proportional to 4,087.44, 5,646.36 and 3,935.72 is: 5,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.44 : 5,646.36 = 3,935.72 : x
  2. Step 2: Convert to fraction form
    4,087.44/5,646.36 = 3,935.72/x
  3. Step 3: Cross multiply
    4,087.44x = 5,646.36 × 3,935.72
  4. Step 4: Simplify right side
    4,087.44x = 22,222,491.98
  5. Step 5: Solve for x
    x = 22,222,491.98/4,087.44
  6. Step 6: Final answer
    x = 5,436.78

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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.