Home / 5,384.25-8,076.57-1,686.39

Finding the Fourth Proportional to 5,384.25, 8,076.57 and 1,686.39

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Solution

The fourth proportional to 5,384.25, 8,076.57 and 1,686.39 is: 2,529.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.25 : 8,076.57 = 1,686.39 : x
  2. Step 2: Convert to fraction form
    5,384.25/8,076.57 = 1,686.39/x
  3. Step 3: Cross multiply
    5,384.25x = 8,076.57 × 1,686.39
  4. Step 4: Simplify right side
    5,384.25x = 13,620,246.88
  5. Step 5: Solve for x
    x = 13,620,246.88/5,384.25
  6. Step 6: Final answer
    x = 2,529.65

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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.