Home / 5,422.74-8,121.07-4,638.25

Finding the Fourth Proportional to 5,422.74, 8,121.07 and 4,638.25

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Solution

The fourth proportional to 5,422.74, 8,121.07 and 4,638.25 is: 6,946.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.74 : 8,121.07 = 4,638.25 : x
  2. Step 2: Convert to fraction form
    5,422.74/8,121.07 = 4,638.25/x
  3. Step 3: Cross multiply
    5,422.74x = 8,121.07 × 4,638.25
  4. Step 4: Simplify right side
    5,422.74x = 37,667,552.93
  5. Step 5: Solve for x
    x = 37,667,552.93/5,422.74
  6. Step 6: Final answer
    x = 6,946.22

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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.