Home / 5,280.24-7,919.44-1,769.90

Finding the Fourth Proportional to 5,280.24, 7,919.44 and 1,769.90

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Solution

The fourth proportional to 5,280.24, 7,919.44 and 1,769.90 is: 2,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.24 : 7,919.44 = 1,769.90 : x
  2. Step 2: Convert to fraction form
    5,280.24/7,919.44 = 1,769.90/x
  3. Step 3: Cross multiply
    5,280.24x = 7,919.44 × 1,769.90
  4. Step 4: Simplify right side
    5,280.24x = 14,016,616.86
  5. Step 5: Solve for x
    x = 14,016,616.86/5,280.24
  6. Step 6: Final answer
    x = 2,654.54

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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.