Home / 2,284.56-3,428.55-1,115.20

Finding the Fourth Proportional to 2,284.56, 3,428.55 and 1,115.20

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Solution

The fourth proportional to 2,284.56, 3,428.55 and 1,115.20 is: 1,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.56 : 3,428.55 = 1,115.20 : x
  2. Step 2: Convert to fraction form
    2,284.56/3,428.55 = 1,115.20/x
  3. Step 3: Cross multiply
    2,284.56x = 3,428.55 × 1,115.20
  4. Step 4: Simplify right side
    2,284.56x = 3,823,515.62
  5. Step 5: Solve for x
    x = 3,823,515.62/2,284.56
  6. Step 6: Final answer
    x = 1,673.63

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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.