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Finding the Fourth Proportional to 5,393.99, 8,082.59 and 4,221.11

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Solution

The fourth proportional to 5,393.99, 8,082.59 and 4,221.11 is: 6,325.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.99 : 8,082.59 = 4,221.11 : x
  2. Step 2: Convert to fraction form
    5,393.99/8,082.59 = 4,221.11/x
  3. Step 3: Cross multiply
    5,393.99x = 8,082.59 × 4,221.11
  4. Step 4: Simplify right side
    5,393.99x = 34,117,500.58
  5. Step 5: Solve for x
    x = 34,117,500.58/5,393.99
  6. Step 6: Final answer
    x = 6,325.09

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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.