Home / 3,080.08-4,620.12-1,540.72

Finding the Fourth Proportional to 3,080.08, 4,620.12 and 1,540.72

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Solution

The fourth proportional to 3,080.08, 4,620.12 and 1,540.72 is: 2,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.08 : 4,620.12 = 1,540.72 : x
  2. Step 2: Convert to fraction form
    3,080.08/4,620.12 = 1,540.72/x
  3. Step 3: Cross multiply
    3,080.08x = 4,620.12 × 1,540.72
  4. Step 4: Simplify right side
    3,080.08x = 7,118,311.29
  5. Step 5: Solve for x
    x = 7,118,311.29/3,080.08
  6. Step 6: Final answer
    x = 2,311.08

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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.