Home / 8,129.72-12,190.02-2,582.04

Finding the Fourth Proportional to 8,129.72, 12,190.02 and 2,582.04

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Solution

The fourth proportional to 8,129.72, 12,190.02 and 2,582.04 is: 3,871.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.72 : 12,190.02 = 2,582.04 : x
  2. Step 2: Convert to fraction form
    8,129.72/12,190.02 = 2,582.04/x
  3. Step 3: Cross multiply
    8,129.72x = 12,190.02 × 2,582.04
  4. Step 4: Simplify right side
    8,129.72x = 31,475,119.24
  5. Step 5: Solve for x
    x = 31,475,119.24/8,129.72
  6. Step 6: Final answer
    x = 3,871.61

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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.