Home / 5,474.30-8,212.65-1,775.90

Finding the Fourth Proportional to 5,474.30, 8,212.65 and 1,775.90

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Solution

The fourth proportional to 5,474.30, 8,212.65 and 1,775.90 is: 2,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,474.30 : 8,212.65 = 1,775.90 : x
  2. Step 2: Convert to fraction form
    5,474.30/8,212.65 = 1,775.90/x
  3. Step 3: Cross multiply
    5,474.30x = 8,212.65 × 1,775.90
  4. Step 4: Simplify right side
    5,474.30x = 14,584,845.14
  5. Step 5: Solve for x
    x = 14,584,845.14/5,474.30
  6. Step 6: Final answer
    x = 2,664.24

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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.