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Finding the Fourth Proportional to 1,818, 2,727 and 1,725.72

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Solution

The fourth proportional to 1,818, 2,727 and 1,725.72 is: 2,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818 : 2,727 = 1,725.72 : x
  2. Step 2: Convert to fraction form
    1,818/2,727 = 1,725.72/x
  3. Step 3: Cross multiply
    1,818x = 2,727 × 1,725.72
  4. Step 4: Simplify right side
    1,818x = 4,706,038.44
  5. Step 5: Solve for x
    x = 4,706,038.44/1,818
  6. Step 6: Final answer
    x = 2,588.58

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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.