Home / 4,197.09-6,287.42-3,218.40

Finding the Fourth Proportional to 4,197.09, 6,287.42 and 3,218.40

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Solution

The fourth proportional to 4,197.09, 6,287.42 and 3,218.40 is: 4,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,197.09 : 6,287.42 = 3,218.40 : x
  2. Step 2: Convert to fraction form
    4,197.09/6,287.42 = 3,218.40/x
  3. Step 3: Cross multiply
    4,197.09x = 6,287.42 × 3,218.40
  4. Step 4: Simplify right side
    4,197.09x = 20,235,432.15
  5. Step 5: Solve for x
    x = 20,235,432.15/4,197.09
  6. Step 6: Final answer
    x = 4,821.31

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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.