Home / 3,211.68-4,435-2,286.24

Finding the Fourth Proportional to 3,211.68, 4,435 and 2,286.24

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Solution

The fourth proportional to 3,211.68, 4,435 and 2,286.24 is: 3,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.68 : 4,435 = 2,286.24 : x
  2. Step 2: Convert to fraction form
    3,211.68/4,435 = 2,286.24/x
  3. Step 3: Cross multiply
    3,211.68x = 4,435 × 2,286.24
  4. Step 4: Simplify right side
    3,211.68x = 10,139,474.40
  5. Step 5: Solve for x
    x = 10,139,474.40/3,211.68
  6. Step 6: Final answer
    x = 3,157.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.