Home / 7,380.66-11,071.71-3,219.42

Finding the Fourth Proportional to 7,380.66, 11,071.71 and 3,219.42

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Solution

The fourth proportional to 7,380.66, 11,071.71 and 3,219.42 is: 4,829.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.66 : 11,071.71 = 3,219.42 : x
  2. Step 2: Convert to fraction form
    7,380.66/11,071.71 = 3,219.42/x
  3. Step 3: Cross multiply
    7,380.66x = 11,071.71 × 3,219.42
  4. Step 4: Simplify right side
    7,380.66x = 35,644,484.61
  5. Step 5: Solve for x
    x = 35,644,484.61/7,380.66
  6. Step 6: Final answer
    x = 4,829.44

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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.