Home / 5,553.20-8,329.79-1,449.20

Finding the Fourth Proportional to 5,553.20, 8,329.79 and 1,449.20

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Solution

The fourth proportional to 5,553.20, 8,329.79 and 1,449.20 is: 2,173.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.20 : 8,329.79 = 1,449.20 : x
  2. Step 2: Convert to fraction form
    5,553.20/8,329.79 = 1,449.20/x
  3. Step 3: Cross multiply
    5,553.20x = 8,329.79 × 1,449.20
  4. Step 4: Simplify right side
    5,553.20x = 12,071,482.77
  5. Step 5: Solve for x
    x = 12,071,482.77/5,553.20
  6. Step 6: Final answer
    x = 2,173.79

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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.