Home / 3,829.20-5,743.80-1,232.40

Finding the Fourth Proportional to 3,829.20, 5,743.80 and 1,232.40

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Solution

The fourth proportional to 3,829.20, 5,743.80 and 1,232.40 is: 1,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.20 : 5,743.80 = 1,232.40 : x
  2. Step 2: Convert to fraction form
    3,829.20/5,743.80 = 1,232.40/x
  3. Step 3: Cross multiply
    3,829.20x = 5,743.80 × 1,232.40
  4. Step 4: Simplify right side
    3,829.20x = 7,078,659.12
  5. Step 5: Solve for x
    x = 7,078,659.12/3,829.20
  6. Step 6: Final answer
    x = 1,848.60

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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.