Home / 5,384.08-8,076.36-1,686.68

Finding the Fourth Proportional to 5,384.08, 8,076.36 and 1,686.68

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Solution

The fourth proportional to 5,384.08, 8,076.36 and 1,686.68 is: 2,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.08 : 8,076.36 = 1,686.68 : x
  2. Step 2: Convert to fraction form
    5,384.08/8,076.36 = 1,686.68/x
  3. Step 3: Cross multiply
    5,384.08x = 8,076.36 × 1,686.68
  4. Step 4: Simplify right side
    5,384.08x = 13,622,234.88
  5. Step 5: Solve for x
    x = 13,622,234.88/5,384.08
  6. Step 6: Final answer
    x = 2,530.10

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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.