Home / 1,835.79-2,753.81-519.66

Finding the Fourth Proportional to 1,835.79, 2,753.81 and 519.66

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Solution

The fourth proportional to 1,835.79, 2,753.81 and 519.66 is: 779.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.79 : 2,753.81 = 519.66 : x
  2. Step 2: Convert to fraction form
    1,835.79/2,753.81 = 519.66/x
  3. Step 3: Cross multiply
    1,835.79x = 2,753.81 × 519.66
  4. Step 4: Simplify right side
    1,835.79x = 1,431,042.31
  5. Step 5: Solve for x
    x = 1,431,042.31/1,835.79
  6. Step 6: Final answer
    x = 779.52

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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.