Home / 7,221.88-10,836.30-3,522.10

Finding the Fourth Proportional to 7,221.88, 10,836.30 and 3,522.10

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Solution

The fourth proportional to 7,221.88, 10,836.30 and 3,522.10 is: 5,284.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.88 : 10,836.30 = 3,522.10 : x
  2. Step 2: Convert to fraction form
    7,221.88/10,836.30 = 3,522.10/x
  3. Step 3: Cross multiply
    7,221.88x = 10,836.30 × 3,522.10
  4. Step 4: Simplify right side
    7,221.88x = 38,166,532.23
  5. Step 5: Solve for x
    x = 38,166,532.23/7,221.88
  6. Step 6: Final answer
    x = 5,284.85

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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.