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Finding the Fourth Proportional to 7,221.83, 10,834.83 and 3,526.20

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Solution

The fourth proportional to 7,221.83, 10,834.83 and 3,526.20 is: 5,290.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.83 : 10,834.83 = 3,526.20 : x
  2. Step 2: Convert to fraction form
    7,221.83/10,834.83 = 3,526.20/x
  3. Step 3: Cross multiply
    7,221.83x = 10,834.83 × 3,526.20
  4. Step 4: Simplify right side
    7,221.83x = 38,205,777.55
  5. Step 5: Solve for x
    x = 38,205,777.55/7,221.83
  6. Step 6: Final answer
    x = 5,290.32

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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.