Home / 5,425.14-8,129.30-3,762.51

Finding the Fourth Proportional to 5,425.14, 8,129.30 and 3,762.51

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Solution

The fourth proportional to 5,425.14, 8,129.30 and 3,762.51 is: 5,637.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.14 : 8,129.30 = 3,762.51 : x
  2. Step 2: Convert to fraction form
    5,425.14/8,129.30 = 3,762.51/x
  3. Step 3: Cross multiply
    5,425.14x = 8,129.30 × 3,762.51
  4. Step 4: Simplify right side
    5,425.14x = 30,586,546.11
  5. Step 5: Solve for x
    x = 30,586,546.11/5,425.14
  6. Step 6: Final answer
    x = 5,637.92

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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.