Home / 1,481.10-2,044.65-921.75

Finding the Fourth Proportional to 1,481.10, 2,044.65 and 921.75

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Solution

The fourth proportional to 1,481.10, 2,044.65 and 921.75 is: 1,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.10 : 2,044.65 = 921.75 : x
  2. Step 2: Convert to fraction form
    1,481.10/2,044.65 = 921.75/x
  3. Step 3: Cross multiply
    1,481.10x = 2,044.65 × 921.75
  4. Step 4: Simplify right side
    1,481.10x = 1,884,645.91
  5. Step 5: Solve for x
    x = 1,884,645.91/1,481.10
  6. Step 6: Final answer
    x = 1,272.47

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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.