Home / 1,340.25-1,847.97-1,074.49

Finding the Fourth Proportional to 1,340.25, 1,847.97 and 1,074.49

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Solution

The fourth proportional to 1,340.25, 1,847.97 and 1,074.49 is: 1,481.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.25 : 1,847.97 = 1,074.49 : x
  2. Step 2: Convert to fraction form
    1,340.25/1,847.97 = 1,074.49/x
  3. Step 3: Cross multiply
    1,340.25x = 1,847.97 × 1,074.49
  4. Step 4: Simplify right side
    1,340.25x = 1,985,628.88
  5. Step 5: Solve for x
    x = 1,985,628.88/1,340.25
  6. Step 6: Final answer
    x = 1,481.53

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Half scale
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Double scale
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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.