Home / 2,213.68-3,318.96-914.08

Finding the Fourth Proportional to 2,213.68, 3,318.96 and 914.08

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Solution

The fourth proportional to 2,213.68, 3,318.96 and 914.08 is: 1,370.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.68 : 3,318.96 = 914.08 : x
  2. Step 2: Convert to fraction form
    2,213.68/3,318.96 = 914.08/x
  3. Step 3: Cross multiply
    2,213.68x = 3,318.96 × 914.08
  4. Step 4: Simplify right side
    2,213.68x = 3,033,794.96
  5. Step 5: Solve for x
    x = 3,033,794.96/2,213.68
  6. Step 6: Final answer
    x = 1,370.48

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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.