Home / 8,120.02-12,181.30-3,440.04

Finding the Fourth Proportional to 8,120.02, 12,181.30 and 3,440.04

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Solution

The fourth proportional to 8,120.02, 12,181.30 and 3,440.04 is: 5,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.02 : 12,181.30 = 3,440.04 : x
  2. Step 2: Convert to fraction form
    8,120.02/12,181.30 = 3,440.04/x
  3. Step 3: Cross multiply
    8,120.02x = 12,181.30 × 3,440.04
  4. Step 4: Simplify right side
    8,120.02x = 41,904,159.25
  5. Step 5: Solve for x
    x = 41,904,159.25/8,120.02
  6. Step 6: Final answer
    x = 5,160.60

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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.