Home / 1,341.27-2,010.38-519.12

Finding the Fourth Proportional to 1,341.27, 2,010.38 and 519.12

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Solution

The fourth proportional to 1,341.27, 2,010.38 and 519.12 is: 778.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.27 : 2,010.38 = 519.12 : x
  2. Step 2: Convert to fraction form
    1,341.27/2,010.38 = 519.12/x
  3. Step 3: Cross multiply
    1,341.27x = 2,010.38 × 519.12
  4. Step 4: Simplify right side
    1,341.27x = 1,043,625.87
  5. Step 5: Solve for x
    x = 1,043,625.87/1,341.27
  6. Step 6: Final answer
    x = 778.09

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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.