Home / 5,286.41-7,929.59-1,337.70

Finding the Fourth Proportional to 5,286.41, 7,929.59 and 1,337.70

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Solution

The fourth proportional to 5,286.41, 7,929.59 and 1,337.70 is: 2,006.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.41 : 7,929.59 = 1,337.70 : x
  2. Step 2: Convert to fraction form
    5,286.41/7,929.59 = 1,337.70/x
  3. Step 3: Cross multiply
    5,286.41x = 7,929.59 × 1,337.70
  4. Step 4: Simplify right side
    5,286.41x = 10,607,405.85
  5. Step 5: Solve for x
    x = 10,607,405.85/5,286.41
  6. Step 6: Final answer
    x = 2,006.54

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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.