Home / 1,930.30-2,664.18-1,090.99

Finding the Fourth Proportional to 1,930.30, 2,664.18 and 1,090.99

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Solution

The fourth proportional to 1,930.30, 2,664.18 and 1,090.99 is: 1,505.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.30 : 2,664.18 = 1,090.99 : x
  2. Step 2: Convert to fraction form
    1,930.30/2,664.18 = 1,090.99/x
  3. Step 3: Cross multiply
    1,930.30x = 2,664.18 × 1,090.99
  4. Step 4: Simplify right side
    1,930.30x = 2,906,593.74
  5. Step 5: Solve for x
    x = 2,906,593.74/1,930.30
  6. Step 6: Final answer
    x = 1,505.77

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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.