Home / 5,271.42-7,274.55-2,913.56

Finding the Fourth Proportional to 5,271.42, 7,274.55 and 2,913.56

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Solution

The fourth proportional to 5,271.42, 7,274.55 and 2,913.56 is: 4,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.42 : 7,274.55 = 2,913.56 : x
  2. Step 2: Convert to fraction form
    5,271.42/7,274.55 = 2,913.56/x
  3. Step 3: Cross multiply
    5,271.42x = 7,274.55 × 2,913.56
  4. Step 4: Simplify right side
    5,271.42x = 21,194,837.90
  5. Step 5: Solve for x
    x = 21,194,837.90/5,271.42
  6. Step 6: Final answer
    x = 4,020.71

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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.