Home / 1,930.09-2,663.62-1,090.83

Finding the Fourth Proportional to 1,930.09, 2,663.62 and 1,090.83

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Solution

The fourth proportional to 1,930.09, 2,663.62 and 1,090.83 is: 1,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.09 : 2,663.62 = 1,090.83 : x
  2. Step 2: Convert to fraction form
    1,930.09/2,663.62 = 1,090.83/x
  3. Step 3: Cross multiply
    1,930.09x = 2,663.62 × 1,090.83
  4. Step 4: Simplify right side
    1,930.09x = 2,905,553.88
  5. Step 5: Solve for x
    x = 2,905,553.88/1,930.09
  6. Step 6: Final answer
    x = 1,505.40

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1.5x scale

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.