Home / 1,977.46-2,728.96-1,180.76

Finding the Fourth Proportional to 1,977.46, 2,728.96 and 1,180.76

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Solution

The fourth proportional to 1,977.46, 2,728.96 and 1,180.76 is: 1,629.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.46 : 2,728.96 = 1,180.76 : x
  2. Step 2: Convert to fraction form
    1,977.46/2,728.96 = 1,180.76/x
  3. Step 3: Cross multiply
    1,977.46x = 2,728.96 × 1,180.76
  4. Step 4: Simplify right side
    1,977.46x = 3,222,230.21
  5. Step 5: Solve for x
    x = 3,222,230.21/1,977.46
  6. Step 6: Final answer
    x = 1,629.48

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.