Home / 2,213.92-3,318.40-914.68

Finding the Fourth Proportional to 2,213.92, 3,318.40 and 914.68

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Solution

The fourth proportional to 2,213.92, 3,318.40 and 914.68 is: 1,371.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.92 : 3,318.40 = 914.68 : x
  2. Step 2: Convert to fraction form
    2,213.92/3,318.40 = 914.68/x
  3. Step 3: Cross multiply
    2,213.92x = 3,318.40 × 914.68
  4. Step 4: Simplify right side
    2,213.92x = 3,035,274.11
  5. Step 5: Solve for x
    x = 3,035,274.11/2,213.92
  6. Step 6: Final answer
    x = 1,371.00

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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.