Home / 4,119.12-5,684.36-2,230.68

Finding the Fourth Proportional to 4,119.12, 5,684.36 and 2,230.68

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Solution

The fourth proportional to 4,119.12, 5,684.36 and 2,230.68 is: 3,078.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,119.12 : 5,684.36 = 2,230.68 : x
  2. Step 2: Convert to fraction form
    4,119.12/5,684.36 = 2,230.68/x
  3. Step 3: Cross multiply
    4,119.12x = 5,684.36 × 2,230.68
  4. Step 4: Simplify right side
    4,119.12x = 12,679,972.63
  5. Step 5: Solve for x
    x = 12,679,972.63/4,119.12
  6. Step 6: Final answer
    x = 3,078.32

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Half scale
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Double scale
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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.