Home / 1,818.14-2,726.70-519.26

Finding the Fourth Proportional to 1,818.14, 2,726.70 and 519.26

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Solution

The fourth proportional to 1,818.14, 2,726.70 and 519.26 is: 778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.14 : 2,726.70 = 519.26 : x
  2. Step 2: Convert to fraction form
    1,818.14/2,726.70 = 519.26/x
  3. Step 3: Cross multiply
    1,818.14x = 2,726.70 × 519.26
  4. Step 4: Simplify right side
    1,818.14x = 1,415,866.24
  5. Step 5: Solve for x
    x = 1,415,866.24/1,818.14
  6. Step 6: Final answer
    x = 778.74

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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.