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Finding the Fourth Proportional to 3,670.47, 5,507.06 and 1,479.83

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Solution

The fourth proportional to 3,670.47, 5,507.06 and 1,479.83 is: 2,220.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.47 : 5,507.06 = 1,479.83 : x
  2. Step 2: Convert to fraction form
    3,670.47/5,507.06 = 1,479.83/x
  3. Step 3: Cross multiply
    3,670.47x = 5,507.06 × 1,479.83
  4. Step 4: Simplify right side
    3,670.47x = 8,149,477.67
  5. Step 5: Solve for x
    x = 8,149,477.67/3,670.47
  6. Step 6: Final answer
    x = 2,220.28

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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.