Home / 2,245.25-3,098.65-1,313.75

Finding the Fourth Proportional to 2,245.25, 3,098.65 and 1,313.75

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Solution

The fourth proportional to 2,245.25, 3,098.65 and 1,313.75 is: 1,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,245.25 : 3,098.65 = 1,313.75 : x
  2. Step 2: Convert to fraction form
    2,245.25/3,098.65 = 1,313.75/x
  3. Step 3: Cross multiply
    2,245.25x = 3,098.65 × 1,313.75
  4. Step 4: Simplify right side
    2,245.25x = 4,070,851.44
  5. Step 5: Solve for x
    x = 4,070,851.44/2,245.25
  6. Step 6: Final answer
    x = 1,813.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.