Home / 7,221.19-10,835.79-3,523.45

Finding the Fourth Proportional to 7,221.19, 10,835.79 and 3,523.45

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Solution

The fourth proportional to 7,221.19, 10,835.79 and 3,523.45 is: 5,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.19 : 10,835.79 = 3,523.45 : x
  2. Step 2: Convert to fraction form
    7,221.19/10,835.79 = 3,523.45/x
  3. Step 3: Cross multiply
    7,221.19x = 10,835.79 × 3,523.45
  4. Step 4: Simplify right side
    7,221.19x = 38,179,357.50
  5. Step 5: Solve for x
    x = 38,179,357.50/7,221.19
  6. Step 6: Final answer
    x = 5,287.13

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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.