Home / 3,243.60-4,465.80-2,725.20

Finding the Fourth Proportional to 3,243.60, 4,465.80 and 2,725.20

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Solution

The fourth proportional to 3,243.60, 4,465.80 and 2,725.20 is: 3,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.60 : 4,465.80 = 2,725.20 : x
  2. Step 2: Convert to fraction form
    3,243.60/4,465.80 = 2,725.20/x
  3. Step 3: Cross multiply
    3,243.60x = 4,465.80 × 2,725.20
  4. Step 4: Simplify right side
    3,243.60x = 12,170,198.16
  5. Step 5: Solve for x
    x = 12,170,198.16/3,243.60
  6. Step 6: Final answer
    x = 3,752.07

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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.