Home / 3,080.76-4,251.44-1,754.20

Finding the Fourth Proportional to 3,080.76, 4,251.44 and 1,754.20

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Solution

The fourth proportional to 3,080.76, 4,251.44 and 1,754.20 is: 2,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.76 : 4,251.44 = 1,754.20 : x
  2. Step 2: Convert to fraction form
    3,080.76/4,251.44 = 1,754.20/x
  3. Step 3: Cross multiply
    3,080.76x = 4,251.44 × 1,754.20
  4. Step 4: Simplify right side
    3,080.76x = 7,457,876.05
  5. Step 5: Solve for x
    x = 7,457,876.05/3,080.76
  6. Step 6: Final answer
    x = 2,420.79

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,081.76, 4,252.82 and 1,755.20
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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.