Home / 4,218.48-6,318.90-3,392.28

Finding the Fourth Proportional to 4,218.48, 6,318.90 and 3,392.28

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Solution

The fourth proportional to 4,218.48, 6,318.90 and 3,392.28 is: 5,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.48 : 6,318.90 = 3,392.28 : x
  2. Step 2: Convert to fraction form
    4,218.48/6,318.90 = 3,392.28/x
  3. Step 3: Cross multiply
    4,218.48x = 6,318.90 × 3,392.28
  4. Step 4: Simplify right side
    4,218.48x = 21,435,478.09
  5. Step 5: Solve for x
    x = 21,435,478.09/4,218.48
  6. Step 6: Final answer
    x = 5,081.33

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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.