Home / 6,466-8,922.66-3,812.80

Finding the Fourth Proportional to 6,466, 8,922.66 and 3,812.80

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Solution

The fourth proportional to 6,466, 8,922.66 and 3,812.80 is: 5,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,466 : 8,922.66 = 3,812.80 : x
  2. Step 2: Convert to fraction form
    6,466/8,922.66 = 3,812.80/x
  3. Step 3: Cross multiply
    6,466x = 8,922.66 × 3,812.80
  4. Step 4: Simplify right side
    6,466x = 34,020,318.05
  5. Step 5: Solve for x
    x = 34,020,318.05/6,466
  6. Step 6: Final answer
    x = 5,261.42

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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.