Home / 2,285.38-3,428.67-1,115.26

Finding the Fourth Proportional to 2,285.38, 3,428.67 and 1,115.26

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Solution

The fourth proportional to 2,285.38, 3,428.67 and 1,115.26 is: 1,673.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.38 : 3,428.67 = 1,115.26 : x
  2. Step 2: Convert to fraction form
    2,285.38/3,428.67 = 1,115.26/x
  3. Step 3: Cross multiply
    2,285.38x = 3,428.67 × 1,115.26
  4. Step 4: Simplify right side
    2,285.38x = 3,823,858.50
  5. Step 5: Solve for x
    x = 3,823,858.50/2,285.38
  6. Step 6: Final answer
    x = 1,673.18

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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.