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Finding the Fourth Proportional to 5,384, 8,076 and 1,435.27

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Solution

The fourth proportional to 5,384, 8,076 and 1,435.27 is: 2,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384 : 8,076 = 1,435.27 : x
  2. Step 2: Convert to fraction form
    5,384/8,076 = 1,435.27/x
  3. Step 3: Cross multiply
    5,384x = 8,076 × 1,435.27
  4. Step 4: Simplify right side
    5,384x = 11,591,240.52
  5. Step 5: Solve for x
    x = 11,591,240.52/5,384
  6. Step 6: Final answer
    x = 2,152.91

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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.