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Finding the Fourth Proportional to 5,486.05, 8,215.05 and 3,018.16

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Solution

The fourth proportional to 5,486.05, 8,215.05 and 3,018.16 is: 4,519.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.05 : 8,215.05 = 3,018.16 : x
  2. Step 2: Convert to fraction form
    5,486.05/8,215.05 = 3,018.16/x
  3. Step 3: Cross multiply
    5,486.05x = 8,215.05 × 3,018.16
  4. Step 4: Simplify right side
    5,486.05x = 24,794,356.89
  5. Step 5: Solve for x
    x = 24,794,356.89/5,486.05
  6. Step 6: Final answer
    x = 4,519.53

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1.5x scale

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.