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Finding the Fourth Proportional to 5,271.88, 7,942.96 and 4,772.15

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Solution

The fourth proportional to 5,271.88, 7,942.96 and 4,772.15 is: 7,190.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.88 : 7,942.96 = 4,772.15 : x
  2. Step 2: Convert to fraction form
    5,271.88/7,942.96 = 4,772.15/x
  3. Step 3: Cross multiply
    5,271.88x = 7,942.96 × 4,772.15
  4. Step 4: Simplify right side
    5,271.88x = 37,905,004.49
  5. Step 5: Solve for x
    x = 37,905,004.49/5,271.88
  6. Step 6: Final answer
    x = 7,190.04

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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.