Home / 3,135.23-4,702.07-1,286.87

Finding the Fourth Proportional to 3,135.23, 4,702.07 and 1,286.87

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Solution

The fourth proportional to 3,135.23, 4,702.07 and 1,286.87 is: 1,929.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.23 : 4,702.07 = 1,286.87 : x
  2. Step 2: Convert to fraction form
    3,135.23/4,702.07 = 1,286.87/x
  3. Step 3: Cross multiply
    3,135.23x = 4,702.07 × 1,286.87
  4. Step 4: Simplify right side
    3,135.23x = 6,050,922.88
  5. Step 5: Solve for x
    x = 6,050,922.88/3,135.23
  6. Step 6: Final answer
    x = 1,929.98

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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.