Home / 5,198.51-7,792.40-2,422.91

Finding the Fourth Proportional to 5,198.51, 7,792.40 and 2,422.91

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Solution

The fourth proportional to 5,198.51, 7,792.40 and 2,422.91 is: 3,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.51 : 7,792.40 = 2,422.91 : x
  2. Step 2: Convert to fraction form
    5,198.51/7,792.40 = 2,422.91/x
  3. Step 3: Cross multiply
    5,198.51x = 7,792.40 × 2,422.91
  4. Step 4: Simplify right side
    5,198.51x = 18,880,309.42
  5. Step 5: Solve for x
    x = 18,880,309.42/5,198.51
  6. Step 6: Final answer
    x = 3,631.87

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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.