Home / 3,115.80-4,673.90-1,167.89

Finding the Fourth Proportional to 3,115.80, 4,673.90 and 1,167.89

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Solution

The fourth proportional to 3,115.80, 4,673.90 and 1,167.89 is: 1,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.80 : 4,673.90 = 1,167.89 : x
  2. Step 2: Convert to fraction form
    3,115.80/4,673.90 = 1,167.89/x
  3. Step 3: Cross multiply
    3,115.80x = 4,673.90 × 1,167.89
  4. Step 4: Simplify right side
    3,115.80x = 5,458,580.62
  5. Step 5: Solve for x
    x = 5,458,580.62/3,115.80
  6. Step 6: Final answer
    x = 1,751.90

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1.5x scale

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.