Home / 5,631.96-7,767.39-4,218.97

Finding the Fourth Proportional to 5,631.96, 7,767.39 and 4,218.97

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Solution

The fourth proportional to 5,631.96, 7,767.39 and 4,218.97 is: 5,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.96 : 7,767.39 = 4,218.97 : x
  2. Step 2: Convert to fraction form
    5,631.96/7,767.39 = 4,218.97/x
  3. Step 3: Cross multiply
    5,631.96x = 7,767.39 × 4,218.97
  4. Step 4: Simplify right side
    5,631.96x = 32,770,365.97
  5. Step 5: Solve for x
    x = 32,770,365.97/5,631.96
  6. Step 6: Final answer
    x = 5,818.64

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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.