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Finding the Fourth Proportional to 5,222.88, 7,880.90 and 5,020.38

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Solution

The fourth proportional to 5,222.88, 7,880.90 and 5,020.38 is: 7,575.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.88 : 7,880.90 = 5,020.38 : x
  2. Step 2: Convert to fraction form
    5,222.88/7,880.90 = 5,020.38/x
  3. Step 3: Cross multiply
    5,222.88x = 7,880.90 × 5,020.38
  4. Step 4: Simplify right side
    5,222.88x = 39,565,087.64
  5. Step 5: Solve for x
    x = 39,565,087.64/5,222.88
  6. Step 6: Final answer
    x = 7,575.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.