Home / 5,553.29-8,329.59-1,855.20

Finding the Fourth Proportional to 5,553.29, 8,329.59 and 1,855.20

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Solution

The fourth proportional to 5,553.29, 8,329.59 and 1,855.20 is: 2,782.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.29 : 8,329.59 = 1,855.20 : x
  2. Step 2: Convert to fraction form
    5,553.29/8,329.59 = 1,855.20/x
  3. Step 3: Cross multiply
    5,553.29x = 8,329.59 × 1,855.20
  4. Step 4: Simplify right side
    5,553.29x = 15,453,086.60
  5. Step 5: Solve for x
    x = 15,453,086.60/5,553.29
  6. Step 6: Final answer
    x = 2,782.69

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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.