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Finding the Fourth Proportional to 1,818.10, 2,726.38 and 893.38

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Solution

The fourth proportional to 1,818.10, 2,726.38 and 893.38 is: 1,339.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.10 : 2,726.38 = 893.38 : x
  2. Step 2: Convert to fraction form
    1,818.10/2,726.38 = 893.38/x
  3. Step 3: Cross multiply
    1,818.10x = 2,726.38 × 893.38
  4. Step 4: Simplify right side
    1,818.10x = 2,435,693.36
  5. Step 5: Solve for x
    x = 2,435,693.36/1,818.10
  6. Step 6: Final answer
    x = 1,339.69

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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.