Home / 3,137.21-4,706.98-1,287.83

Finding the Fourth Proportional to 3,137.21, 4,706.98 and 1,287.83

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Solution

The fourth proportional to 3,137.21, 4,706.98 and 1,287.83 is: 1,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.21 : 4,706.98 = 1,287.83 : x
  2. Step 2: Convert to fraction form
    3,137.21/4,706.98 = 1,287.83/x
  3. Step 3: Cross multiply
    3,137.21x = 4,706.98 × 1,287.83
  4. Step 4: Simplify right side
    3,137.21x = 6,061,798.60
  5. Step 5: Solve for x
    x = 6,061,798.60/3,137.21
  6. Step 6: Final answer
    x = 1,932.22

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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.