Home / 5,488.30-8,220.30-2,199.70

Finding the Fourth Proportional to 5,488.30, 8,220.30 and 2,199.70

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Solution

The fourth proportional to 5,488.30, 8,220.30 and 2,199.70 is: 3,294.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.30 : 8,220.30 = 2,199.70 : x
  2. Step 2: Convert to fraction form
    5,488.30/8,220.30 = 2,199.70/x
  3. Step 3: Cross multiply
    5,488.30x = 8,220.30 × 2,199.70
  4. Step 4: Simplify right side
    5,488.30x = 18,082,193.91
  5. Step 5: Solve for x
    x = 18,082,193.91/5,488.30
  6. Step 6: Final answer
    x = 3,294.68

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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.