Home / 4,791.12-7,181.54-2,155.04

Finding the Fourth Proportional to 4,791.12, 7,181.54 and 2,155.04

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Solution

The fourth proportional to 4,791.12, 7,181.54 and 2,155.04 is: 3,230.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.12 : 7,181.54 = 2,155.04 : x
  2. Step 2: Convert to fraction form
    4,791.12/7,181.54 = 2,155.04/x
  3. Step 3: Cross multiply
    4,791.12x = 7,181.54 × 2,155.04
  4. Step 4: Simplify right side
    4,791.12x = 15,476,459.28
  5. Step 5: Solve for x
    x = 15,476,459.28/4,791.12
  6. Step 6: Final answer
    x = 3,230.24

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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.