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Finding the Fourth Proportional to 3,869.93, 5,802.33 and 1,404.77

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Solution

The fourth proportional to 3,869.93, 5,802.33 and 1,404.77 is: 2,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.93 : 5,802.33 = 1,404.77 : x
  2. Step 2: Convert to fraction form
    3,869.93/5,802.33 = 1,404.77/x
  3. Step 3: Cross multiply
    3,869.93x = 5,802.33 × 1,404.77
  4. Step 4: Simplify right side
    3,869.93x = 8,150,910.10
  5. Step 5: Solve for x
    x = 8,150,910.10/3,869.93
  6. Step 6: Final answer
    x = 2,106.22

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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.