Home / 4,207.32-6,311.70-1,285.38

Finding the Fourth Proportional to 4,207.32, 6,311.70 and 1,285.38

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Solution

The fourth proportional to 4,207.32, 6,311.70 and 1,285.38 is: 1,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.32 : 6,311.70 = 1,285.38 : x
  2. Step 2: Convert to fraction form
    4,207.32/6,311.70 = 1,285.38/x
  3. Step 3: Cross multiply
    4,207.32x = 6,311.70 × 1,285.38
  4. Step 4: Simplify right side
    4,207.32x = 8,112,932.95
  5. Step 5: Solve for x
    x = 8,112,932.95/4,207.32
  6. Step 6: Final answer
    x = 1,928.29

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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.