Home / 5,438.70-8,159.04-3,591.36

Finding the Fourth Proportional to 5,438.70, 8,159.04 and 3,591.36

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Solution

The fourth proportional to 5,438.70, 8,159.04 and 3,591.36 is: 5,387.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.70 : 8,159.04 = 3,591.36 : x
  2. Step 2: Convert to fraction form
    5,438.70/8,159.04 = 3,591.36/x
  3. Step 3: Cross multiply
    5,438.70x = 8,159.04 × 3,591.36
  4. Step 4: Simplify right side
    5,438.70x = 29,302,049.89
  5. Step 5: Solve for x
    x = 29,302,049.89/5,438.70
  6. Step 6: Final answer
    x = 5,387.69

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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.