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Finding the Fourth Proportional to 5,222.46, 7,833.90 and 1,326.90

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Solution

The fourth proportional to 5,222.46, 7,833.90 and 1,326.90 is: 1,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.46 : 7,833.90 = 1,326.90 : x
  2. Step 2: Convert to fraction form
    5,222.46/7,833.90 = 1,326.90/x
  3. Step 3: Cross multiply
    5,222.46x = 7,833.90 × 1,326.90
  4. Step 4: Simplify right side
    5,222.46x = 10,394,801.91
  5. Step 5: Solve for x
    x = 10,394,801.91/5,222.46
  6. Step 6: Final answer
    x = 1,990.40

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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.