Home / 5,182.96-7,767.90-2,586.64

Finding the Fourth Proportional to 5,182.96, 7,767.90 and 2,586.64

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Solution

The fourth proportional to 5,182.96, 7,767.90 and 2,586.64 is: 3,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.96 : 7,767.90 = 2,586.64 : x
  2. Step 2: Convert to fraction form
    5,182.96/7,767.90 = 2,586.64/x
  3. Step 3: Cross multiply
    5,182.96x = 7,767.90 × 2,586.64
  4. Step 4: Simplify right side
    5,182.96x = 20,092,760.86
  5. Step 5: Solve for x
    x = 20,092,760.86/5,182.96
  6. Step 6: Final answer
    x = 3,876.70

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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.