Home / 1,930.35-2,663.72-1,091.13

Finding the Fourth Proportional to 1,930.35, 2,663.72 and 1,091.13

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Solution

The fourth proportional to 1,930.35, 2,663.72 and 1,091.13 is: 1,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.35 : 2,663.72 = 1,091.13 : x
  2. Step 2: Convert to fraction form
    1,930.35/2,663.72 = 1,091.13/x
  3. Step 3: Cross multiply
    1,930.35x = 2,663.72 × 1,091.13
  4. Step 4: Simplify right side
    1,930.35x = 2,906,464.80
  5. Step 5: Solve for x
    x = 2,906,464.80/1,930.35
  6. Step 6: Final answer
    x = 1,505.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.