Home / 5,475.81-8,207.83-2,840.68

Finding the Fourth Proportional to 5,475.81, 8,207.83 and 2,840.68

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Solution

The fourth proportional to 5,475.81, 8,207.83 and 2,840.68 is: 4,257.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.81 : 8,207.83 = 2,840.68 : x
  2. Step 2: Convert to fraction form
    5,475.81/8,207.83 = 2,840.68/x
  3. Step 3: Cross multiply
    5,475.81x = 8,207.83 × 2,840.68
  4. Step 4: Simplify right side
    5,475.81x = 23,315,790.90
  5. Step 5: Solve for x
    x = 23,315,790.90/5,475.81
  6. Step 6: Final answer
    x = 4,257.96

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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.