Home / 2,231.29-3,345.68-914.68

Finding the Fourth Proportional to 2,231.29, 3,345.68 and 914.68

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Solution

The fourth proportional to 2,231.29, 3,345.68 and 914.68 is: 1,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.29 : 3,345.68 = 914.68 : x
  2. Step 2: Convert to fraction form
    2,231.29/3,345.68 = 914.68/x
  3. Step 3: Cross multiply
    2,231.29x = 3,345.68 × 914.68
  4. Step 4: Simplify right side
    2,231.29x = 3,060,226.58
  5. Step 5: Solve for x
    x = 3,060,226.58/2,231.29
  6. Step 6: Final answer
    x = 1,371.51

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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.