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Finding the Fourth Proportional to 1,801.84, 2,704.44 and 1,109.86

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Solution

The fourth proportional to 1,801.84, 2,704.44 and 1,109.86 is: 1,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.84 : 2,704.44 = 1,109.86 : x
  2. Step 2: Convert to fraction form
    1,801.84/2,704.44 = 1,109.86/x
  3. Step 3: Cross multiply
    1,801.84x = 2,704.44 × 1,109.86
  4. Step 4: Simplify right side
    1,801.84x = 3,001,547.18
  5. Step 5: Solve for x
    x = 3,001,547.18/1,801.84
  6. Step 6: Final answer
    x = 1,665.82

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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.