Home / 3,436.82-5,155.74-1,245.04

Finding the Fourth Proportional to 3,436.82, 5,155.74 and 1,245.04

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Solution

The fourth proportional to 3,436.82, 5,155.74 and 1,245.04 is: 1,867.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.82 : 5,155.74 = 1,245.04 : x
  2. Step 2: Convert to fraction form
    3,436.82/5,155.74 = 1,245.04/x
  3. Step 3: Cross multiply
    3,436.82x = 5,155.74 × 1,245.04
  4. Step 4: Simplify right side
    3,436.82x = 6,419,070.53
  5. Step 5: Solve for x
    x = 6,419,070.53/3,436.82
  6. Step 6: Final answer
    x = 1,867.74

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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.