Home / 3,115.75-4,673.63-1,267.87

Finding the Fourth Proportional to 3,115.75, 4,673.63 and 1,267.87

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Solution

The fourth proportional to 3,115.75, 4,673.63 and 1,267.87 is: 1,901.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.75 : 4,673.63 = 1,267.87 : x
  2. Step 2: Convert to fraction form
    3,115.75/4,673.63 = 1,267.87/x
  3. Step 3: Cross multiply
    3,115.75x = 4,673.63 × 1,267.87
  4. Step 4: Simplify right side
    3,115.75x = 5,925,555.27
  5. Step 5: Solve for x
    x = 5,925,555.27/3,115.75
  6. Step 6: Final answer
    x = 1,901.81

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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.