Home / 5,555.14-8,331.94-1,857.28

Finding the Fourth Proportional to 5,555.14, 8,331.94 and 1,857.28

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Solution

The fourth proportional to 5,555.14, 8,331.94 and 1,857.28 is: 2,785.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.14 : 8,331.94 = 1,857.28 : x
  2. Step 2: Convert to fraction form
    5,555.14/8,331.94 = 1,857.28/x
  3. Step 3: Cross multiply
    5,555.14x = 8,331.94 × 1,857.28
  4. Step 4: Simplify right side
    5,555.14x = 15,474,745.52
  5. Step 5: Solve for x
    x = 15,474,745.52/5,555.14
  6. Step 6: Final answer
    x = 2,785.66

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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.