Home / 3,489.42-5,233.68-2,908.05

Finding the Fourth Proportional to 3,489.42, 5,233.68 and 2,908.05

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Solution

The fourth proportional to 3,489.42, 5,233.68 and 2,908.05 is: 4,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.42 : 5,233.68 = 2,908.05 : x
  2. Step 2: Convert to fraction form
    3,489.42/5,233.68 = 2,908.05/x
  3. Step 3: Cross multiply
    3,489.42x = 5,233.68 × 2,908.05
  4. Step 4: Simplify right side
    3,489.42x = 15,219,803.12
  5. Step 5: Solve for x
    x = 15,219,803.12/3,489.42
  6. Step 6: Final answer
    x = 4,361.70

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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.