Home / 4,109.60-6,164.40-3,429.20

Finding the Fourth Proportional to 4,109.60, 6,164.40 and 3,429.20

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Solution

The fourth proportional to 4,109.60, 6,164.40 and 3,429.20 is: 5,143.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,109.60 : 6,164.40 = 3,429.20 : x
  2. Step 2: Convert to fraction form
    4,109.60/6,164.40 = 3,429.20/x
  3. Step 3: Cross multiply
    4,109.60x = 6,164.40 × 3,429.20
  4. Step 4: Simplify right side
    4,109.60x = 21,138,960.48
  5. Step 5: Solve for x
    x = 21,138,960.48/4,109.60
  6. Step 6: Final answer
    x = 5,143.80

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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.