Home / 5,438.31-8,159.40-3,355.89

Finding the Fourth Proportional to 5,438.31, 8,159.40 and 3,355.89

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Solution

The fourth proportional to 5,438.31, 8,159.40 and 3,355.89 is: 5,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.31 : 8,159.40 = 3,355.89 : x
  2. Step 2: Convert to fraction form
    5,438.31/8,159.40 = 3,355.89/x
  3. Step 3: Cross multiply
    5,438.31x = 8,159.40 × 3,355.89
  4. Step 4: Simplify right side
    5,438.31x = 27,382,048.87
  5. Step 5: Solve for x
    x = 27,382,048.87/5,438.31
  6. Step 6: Final answer
    x = 5,035.03

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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.