Home / 3,091.70-4,635.36-1,116.38

Finding the Fourth Proportional to 3,091.70, 4,635.36 and 1,116.38

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Solution

The fourth proportional to 3,091.70, 4,635.36 and 1,116.38 is: 1,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.70 : 4,635.36 = 1,116.38 : x
  2. Step 2: Convert to fraction form
    3,091.70/4,635.36 = 1,116.38/x
  3. Step 3: Cross multiply
    3,091.70x = 4,635.36 × 1,116.38
  4. Step 4: Simplify right side
    3,091.70x = 5,174,834.79
  5. Step 5: Solve for x
    x = 5,174,834.79/3,091.70
  6. Step 6: Final answer
    x = 1,673.78

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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.