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Finding the Fourth Proportional to 3,821.92, 5,733.03 and 1,357

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Solution

The fourth proportional to 3,821.92, 5,733.03 and 1,357 is: 2,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.92 : 5,733.03 = 1,357 : x
  2. Step 2: Convert to fraction form
    3,821.92/5,733.03 = 1,357/x
  3. Step 3: Cross multiply
    3,821.92x = 5,733.03 × 1,357
  4. Step 4: Simplify right side
    3,821.92x = 7,779,721.71
  5. Step 5: Solve for x
    x = 7,779,721.71/3,821.92
  6. Step 6: Final answer
    x = 2,035.55

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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.