Home / 5,425.65-8,143.94-3,665.12

Finding the Fourth Proportional to 5,425.65, 8,143.94 and 3,665.12

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Solution

The fourth proportional to 5,425.65, 8,143.94 and 3,665.12 is: 5,501.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.65 : 8,143.94 = 3,665.12 : x
  2. Step 2: Convert to fraction form
    5,425.65/8,143.94 = 3,665.12/x
  3. Step 3: Cross multiply
    5,425.65x = 8,143.94 × 3,665.12
  4. Step 4: Simplify right side
    5,425.65x = 29,848,485.82
  5. Step 5: Solve for x
    x = 29,848,485.82/5,425.65
  6. Step 6: Final answer
    x = 5,501.37

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1.5x scale

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.