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Finding the Fourth Proportional to 3,855.95, 5,790.99 and 3,530.64

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Solution

The fourth proportional to 3,855.95, 5,790.99 and 3,530.64 is: 5,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.95 : 5,790.99 = 3,530.64 : x
  2. Step 2: Convert to fraction form
    3,855.95/5,790.99 = 3,530.64/x
  3. Step 3: Cross multiply
    3,855.95x = 5,790.99 × 3,530.64
  4. Step 4: Simplify right side
    3,855.95x = 20,445,903.32
  5. Step 5: Solve for x
    x = 20,445,903.32/3,855.95
  6. Step 6: Final answer
    x = 5,302.42

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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.