Home / 6,211.87-8,570.29-4,218.97

Finding the Fourth Proportional to 6,211.87, 8,570.29 and 4,218.97

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Solution

The fourth proportional to 6,211.87, 8,570.29 and 4,218.97 is: 5,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,211.87 : 8,570.29 = 4,218.97 : x
  2. Step 2: Convert to fraction form
    6,211.87/8,570.29 = 4,218.97/x
  3. Step 3: Cross multiply
    6,211.87x = 8,570.29 × 4,218.97
  4. Step 4: Simplify right side
    6,211.87x = 36,157,796.40
  5. Step 5: Solve for x
    x = 36,157,796.40/6,211.87
  6. Step 6: Final answer
    x = 5,820.76

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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.