Home / 1,818.17-2,726.88-519.35

Finding the Fourth Proportional to 1,818.17, 2,726.88 and 519.35

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Solution

The fourth proportional to 1,818.17, 2,726.88 and 519.35 is: 778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.17 : 2,726.88 = 519.35 : x
  2. Step 2: Convert to fraction form
    1,818.17/2,726.88 = 519.35/x
  3. Step 3: Cross multiply
    1,818.17x = 2,726.88 × 519.35
  4. Step 4: Simplify right side
    1,818.17x = 1,416,205.13
  5. Step 5: Solve for x
    x = 1,416,205.13/1,818.17
  6. Step 6: Final answer
    x = 778.92

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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.