Home / 3,137.67-4,705.22-1,287.52

Finding the Fourth Proportional to 3,137.67, 4,705.22 and 1,287.52

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Solution

The fourth proportional to 3,137.67, 4,705.22 and 1,287.52 is: 1,930.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.67 : 4,705.22 = 1,287.52 : x
  2. Step 2: Convert to fraction form
    3,137.67/4,705.22 = 1,287.52/x
  3. Step 3: Cross multiply
    3,137.67x = 4,705.22 × 1,287.52
  4. Step 4: Simplify right side
    3,137.67x = 6,058,056.31
  5. Step 5: Solve for x
    x = 6,058,056.31/3,137.67
  6. Step 6: Final answer
    x = 1,930.75

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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.