Home / 7,489.91-11,219.81-3,730.35

Finding the Fourth Proportional to 7,489.91, 11,219.81 and 3,730.35

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Solution

The fourth proportional to 7,489.91, 11,219.81 and 3,730.35 is: 5,588.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.91 : 11,219.81 = 3,730.35 : x
  2. Step 2: Convert to fraction form
    7,489.91/11,219.81 = 3,730.35/x
  3. Step 3: Cross multiply
    7,489.91x = 11,219.81 × 3,730.35
  4. Step 4: Simplify right side
    7,489.91x = 41,853,799.58
  5. Step 5: Solve for x
    x = 41,853,799.58/7,489.91
  6. Step 6: Final answer
    x = 5,588.03

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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.