Home / 5,118.10-7,674.63-1,654.90

Finding the Fourth Proportional to 5,118.10, 7,674.63 and 1,654.90

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Solution

The fourth proportional to 5,118.10, 7,674.63 and 1,654.90 is: 2,481.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.10 : 7,674.63 = 1,654.90 : x
  2. Step 2: Convert to fraction form
    5,118.10/7,674.63 = 1,654.90/x
  3. Step 3: Cross multiply
    5,118.10x = 7,674.63 × 1,654.90
  4. Step 4: Simplify right side
    5,118.10x = 12,700,745.19
  5. Step 5: Solve for x
    x = 12,700,745.19/5,118.10
  6. Step 6: Final answer
    x = 2,481.54

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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.