Home / 7,078.48-10,617.72-3,181.84

Finding the Fourth Proportional to 7,078.48, 10,617.72 and 3,181.84

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Solution

The fourth proportional to 7,078.48, 10,617.72 and 3,181.84 is: 4,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.48 : 10,617.72 = 3,181.84 : x
  2. Step 2: Convert to fraction form
    7,078.48/10,617.72 = 3,181.84/x
  3. Step 3: Cross multiply
    7,078.48x = 10,617.72 × 3,181.84
  4. Step 4: Simplify right side
    7,078.48x = 33,783,886.20
  5. Step 5: Solve for x
    x = 33,783,886.20/7,078.48
  6. Step 6: Final answer
    x = 4,772.76

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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.