Home / 3,855.12-5,775.60-3,440.04

Finding the Fourth Proportional to 3,855.12, 5,775.60 and 3,440.04

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Solution

The fourth proportional to 3,855.12, 5,775.60 and 3,440.04 is: 5,153.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.12 : 5,775.60 = 3,440.04 : x
  2. Step 2: Convert to fraction form
    3,855.12/5,775.60 = 3,440.04/x
  3. Step 3: Cross multiply
    3,855.12x = 5,775.60 × 3,440.04
  4. Step 4: Simplify right side
    3,855.12x = 19,868,295.02
  5. Step 5: Solve for x
    x = 19,868,295.02/3,855.12
  6. Step 6: Final answer
    x = 5,153.74

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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.