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Finding the Fourth Proportional to 5,553.80, 8,329.80 and 4,622.78

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Solution

The fourth proportional to 5,553.80, 8,329.80 and 4,622.78 is: 6,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.80 : 8,329.80 = 4,622.78 : x
  2. Step 2: Convert to fraction form
    5,553.80/8,329.80 = 4,622.78/x
  3. Step 3: Cross multiply
    5,553.80x = 8,329.80 × 4,622.78
  4. Step 4: Simplify right side
    5,553.80x = 38,506,832.84
  5. Step 5: Solve for x
    x = 38,506,832.84/5,553.80
  6. Step 6: Final answer
    x = 6,933.42

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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.