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Finding the Fourth Proportional to 5,383.65, 8,076.69 and 1,873.82

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Solution

The fourth proportional to 5,383.65, 8,076.69 and 1,873.82 is: 2,811.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.65 : 8,076.69 = 1,873.82 : x
  2. Step 2: Convert to fraction form
    5,383.65/8,076.69 = 1,873.82/x
  3. Step 3: Cross multiply
    5,383.65x = 8,076.69 × 1,873.82
  4. Step 4: Simplify right side
    5,383.65x = 15,134,263.26
  5. Step 5: Solve for x
    x = 15,134,263.26/5,383.65
  6. Step 6: Final answer
    x = 2,811.15

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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.