Home / 2,285.53-3,428.09-1,115.08

Finding the Fourth Proportional to 2,285.53, 3,428.09 and 1,115.08

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Solution

The fourth proportional to 2,285.53, 3,428.09 and 1,115.08 is: 1,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.53 : 3,428.09 = 1,115.08 : x
  2. Step 2: Convert to fraction form
    2,285.53/3,428.09 = 1,115.08/x
  3. Step 3: Cross multiply
    2,285.53x = 3,428.09 × 1,115.08
  4. Step 4: Simplify right side
    2,285.53x = 3,822,571.88
  5. Step 5: Solve for x
    x = 3,822,571.88/2,285.53
  6. Step 6: Final answer
    x = 1,672.51

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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.