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Finding the Fourth Proportional to 5,271, 7,273.96 and 2,913.16

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Solution

The fourth proportional to 5,271, 7,273.96 and 2,913.16 is: 4,020.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271 : 7,273.96 = 2,913.16 : x
  2. Step 2: Convert to fraction form
    5,271/7,273.96 = 2,913.16/x
  3. Step 3: Cross multiply
    5,271x = 7,273.96 × 2,913.16
  4. Step 4: Simplify right side
    5,271x = 21,190,209.31
  5. Step 5: Solve for x
    x = 21,190,209.31/5,271
  6. Step 6: Final answer
    x = 4,020.15

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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.